PROCEEDINGS 4 6 ™ A N N U A L CONFERENCE MID-ATLANTIC GOLF COURSE SUPERINTENDENT A S S O C I A T I O N January 6 - 7 , 1 9 7 5 BALTIMORE HILTON INN PIKESVILLE, MARYLAND The proceedings o f the 46th Annual Conference o f the M î d - A t l a n t î c A s s o c i a t i o n o f Golf Course S u p e r i n t e n d e n t s were published through the combined e f f o r t o f the U n i v e r s i t y Maryland C o o p e r a t i v e E x t e n s i o n S e r v i c e , the U n i v e r s i t y o f Maryland Department o f Agronomy and the M i d - A t l a n t i c o f Golf Course Paul Barefoot, President Kenneth Braun Angelo Cammarota David Cammarota John R. Hai 1, Robert III, Turfgrass U n i v e r s i t y o f M a r y l a n d , Department o f Agronomy. Program P l a n n i n g Committee J. Association Superintendents. M a n u s c r i p t s were e d i t e d by John R. H a l l , Specialist, of III Miller W i l l i a m Emerson, Chairman TABLE OF CONTENTS P l a n n i n g a Disease Control Herbert Cole, J r . Program 1 A Look a t Warm Season - Cool Season Combinations Douiglas T . Hawes k Some Observations on Growth R e t a r d a n t s For Turf R, E. Schmidt & S . W. Bingham 7 Nematodes in T u r f g r a s s Joseph T r o l 1 E f f i c i e n c y and S a f e t y Rai ph E . Engel 10 in C o n t r o l l i n g Weeds on the Golf Course C u t t i n g Corners w i t h Equipment Alexander M. Radko 17 E f f i c i e n t Labor Management Richard E. V a l e n t i n e 20 Making Research and Extension Work f o r You John R. Hal 1 , I I I 23 PLANNING A DISEASE CONTROL PROGRAM Herbert Cole, J r . P r o f e s s o r , Department o f P l a n t Pathology Pennsylvania S t a t e U n i v e r s i t y In these days o f c l i m b i n g p r i c e s and s t a t i c o r d e c l i n i n g budgets many g o l f courses are faced w i t h reduced purchasing power. Cutbacks are occurring. From the s u p e r i n t e n d e n t s v i e w , can he provide the same l e v e l o f maintenance on fewer d o l l a r s , o r must standards a l s o be reduced? The answer depends on h i s s k i l l and the degree o f c u t b a c k . For the present w i t h most net r e d u c t i o n s ( i n f l a t i o n a r y r e d u c t i o n in buying power and s t a t i c o r reduced budgets) in the 0-20 p e r c e n t range, I b e l i e v e the same standards can be maintained without loss. Very few o f us a r e so e f f i c i e n t t h a t we cannot f i n d b e t t e r ways of doing t h i n g s f o r l e s s e x p e n d i t u r e s . In an attempt to help you maximize e f f o r t s in a t l e a s t one a r e a , namely, disease c o n t r o l s , I have prepared a check l i s t o f ideas f o r you to c o n s i d e r in planning a 1975 program. The sequence o f p r e s e n t a t i o n r e p r e s e n t s a p r i o r i t y ranking from my view but my p r i o r i t i e s may d i f f e r v a s t l y from y o u r s . If just one o f these ideas i s o f some use then I won 1 1 f e e l my e f f o r t s have been wasted. 1. Disease c o n t r o l c a n ' t be separated from the t o t a l management p i c t u r e . E v e r y c u l t u r a l p r a c t i c e in some way e f f e c t s d i s e a s e i n c i d e n c e and severi ty. a. I r r i g a t i o n - o v e r w a t e r i n g in general makes d i s e a s e more severe. L i g h t s y r i n g i n g i r r i g a t i o n (except Fusarium b l i g h t ) w i l l u s u a l l y make summer d i s e a s e s more severe - example f a i r w a y d o l l a r spot and brown patch. 2. b. F e r t i l i z a t i o n - nitrogen manipulation and can be both a p l u s o r minus. is especially c. Vigorous grass (not s u c c u l e n t s o f t g r a s s ) w i l l r a p i d l y and s u s t a i n l e s s damage. recover more There i s no s u b s t i t u t e f o r a complete b a s i c knowledge o f a l l di seases. identify critical turfqrass a. D i a g n o s i s - know the problem, it. b. Prognosis - the f u t u r e course o f the d i s e a s e , the o u t l o o k . Is i t serious, or j u s t c u r i o s i t y ? W i l l i t get b e t t e r o r worse r e g a r d l e s s o f what you do o r w i l l your e f f o r t s change i t s course. c. Control - be a b l e to choose among a l l p o s s i b l e a v a i l a b l e o p t i o n s , then s e l e c t the b e s t one f o r your s i t u a t i o n and budget. 3. E s t a b l i s h p r i o r i t i e s f o r maintenance f o r the v a r i o u s areas o f a g o l f For example t h i s would be my s e l e c t i o n . course. a* Greens - kO y e a r s ago t h i s was the major g o l f course c o n s i d e r a t i o n , i t s t i l l should be #1. W i t h poor greens a l l e l s e i s wasted. k* Tees - T h i s i s the green companion; on s h o r t h o l e s the in between i s j u s t walked o v e r . F a i rways - In a c r i s i s during mid-summer a more o r l e s s brown droughty area can s t i l l s e r v e as a f a i r w a y ( t h e d u f f e r gets a better r o l l ) . Sheep p a s t u r e s o r i g i n a l l y provided f a i r w a y s , a t l e a s t yours w o n f t have the sheep manure problem u n l e s s t h i n g s r e a l l y get tough. Roughs - Nobody has any r i g h t to be here anyway. encounters i s h i s own f a u l t . e. k. 6- Don't f o r g e t the f l o w e r s and c l u b house a r e a . A few b r i g h t spots can make a dismal s i t u a t i o n much b r i g h t e r . Work as c l o s e l y as p o s s i b l e w i t h the greens committee and/or c l u b management. Be sure t h a t your p r i o r i t i e s and t h e i r s are in agreement. a. 5. What he When a cutback o r change w i l l have a n o t i c e a b l e e f f e c t , be sure they are appraised o f t h i s ahead of t i m e . T r y to get them to assume r e s p o n s i b i l i t y f o r the changes t h a t come from f i n a n c i a l constraints. You should not be the blame-taker f o r poor f a i r ways on a reduced budget. Be sure the club does not save money by r e p l a c i n g you w i t h your a s s i s t a n t o r foreman. Measure the c o s t e f f e c t i v e n e s s of a l l you do. E v a l u a t e each p r a c t i c e in l i g h t of what your d o l l a r s produce. Time i s money but in some i n s t a n c e s time i s a v a i l a b l e and money f o r equipment and materials is not. a. Most g o l f courses on slow r e l e a s e f e r t i l i z e r s have e x c e l l e n t r e s i d u a l c a r r y - o v e r of p l a n t n u t r i e n t s in f a i r w a y s from y e a r to year. You can c u t back here but perhaps not on greens. b. Does t h i s f u n g i c i d e a p p l i c a t i o n r e a l l y r e s u l t in a response? I s the response you get worth the e x p e n d i t u r e ? c. Maximize the b e n e f i t / c o s t r a t i o . Some e x p e n d i t u r e s a r e m a r g i n a l ; o t h e r s r e p r e s e n t a v e r y wide b e n e f i t / c o s t d i f f e r e n c e . Seek the wide margins. Where p o s s i b l e use c u l t u r a l management p r a c t i c e s to r e p l a c e high c o s t fungi c i d e s . a. Frequent and l i g h t top d r e s s i n g i s one o f the most e f f e c t i v e d i s e a s e c o n t r o l p r a c t i c e s f o r greens and t e e s . M o i s t s o i l speeds c l i p p i n g and t h a t c h decay and p r o v i d e s b a c t e r i a l a c t i o n f o r supp r e s s i n g fungal d i s e a s e organism s u r v i v a l . 7. 8, b0 On b l u e g r a s s f a i r w a y s w i t h Helminthosporium l e a f spot and crown r o t problems a d e l a y in N a p p l i c a t i o n s from March to June can save $40.00 to $50.00 per acre in f u n g i c i d e m a t e r i a l c o s t s plus $3o00 to $9o00 per a c r e in a p p l i c a t i o n cost« Co I f f a i r w a y f u n g i c i d e s are not f e a s i b l e in t h i s y e a r f s budget then take a hard look a t i r r i g a t i o n * I r r i g a t i o n of the f a i r ways in mid-summer makes f u n g i c i d e s imperative f o r c o n t r o l l i n g the w e t , hot summer d i s e a s e s . Consider a p a r t i a l c u r a t i v e program f o r d i s e a s e c o n t r o l complete p r e v e n t i v e program* 0. than a. T h i s depends on your l o c a l i t y and past e x p e r i e n c e ; problem areas ahead of time. b. W i l l you trade s e v e r a l thousand d o l l a r s worth of f u n g i c i d e e x p e n d i t u r e s f o r a t w i c e day examination of greens and t e e s ? Fungicide insurance treatments are a poor s u b s t i t u t e f o r c a r e f u l examination. Consider p a r t i a l appear. a. 9* rather t r e a t only treatment of p o r t i o n s of the g o l f course as problems In many cases the real troublesome a r e a s where d i s e a s e s appear y e a r a f t e r y e a r may i n v o l v e o n l y a few greens, t e e s , or f a i r ways. T r e a t these on a p r e v e n t i v e b a s i s , l e t the r e s t continue on a c u r a t i v e b a s i s . Measure e f f e c t i v e n e s s of treatments. a. Very o f t e n we see what we wish to see. A f t e r an expensive treatment we v e r y much d e s i r e good r e s u l t s . Often the r e s u l t s w i l l not stand up in the c o l d l i g h t of o b j e c t i v e e v a l u a t i o n . You cannot a f f o r d chemical p r a c t i c e s based on good i n t e n t i o n s and hope f o r r e s u l t s . b. Leave check areas and u n t r e a t e d Apply chemicals strips. in the best p o s s i b l e manner. a. Calibrated b. Proper n o z z l e s . c. Precise d. Good t i m i n g . E v e r y t h i n g must be right. equipment. dosages. In summary p l a n n i n g a d i s e a s e c o n t r o l program w i t h a s h r i n k i n g budget w i l l require the best of your a b i l i t y . The rewards can be g r e a t . Money f r e e d f o r other purposes can produce much more t a n g i b l e r e s u l t s than unnecessary f u n g i c i d e treatments. A LOOK AT WARM-SEASON - COOL-SEASON COMBINATIONS Douglas T. Hawes Assistant Professor U n i v e r s i t y o f Maryland Here in the t r a n s i t i o n zone from my p o i n t o f v i e w , t h e r e are f o u r primary turf species. These are c r e e p i n g b e n t g r a s s , Kentucky b l u e g r a s s , bermudagrass and z o y s i a . In a t a l k to t h i s o r g a n i z a t i o n in June o f 1974, I compared the advantages and disadvantages o f these f o u r s p e c i e s . As you are w e l l aware, none of these are e x a c t l y p e r f e c t in t h i s area f o r tees and f a i r w a y s . Because of t h i s many o f you are t r y i n g p e r e n n i a l r y e g r a s s overseedings into e i t h e r bermudagrass o r Kentucky b l u e g r a s s . In the summer and f a l l of 1973, I i n i t i a t e d an experiment w i t h e i g h t combinations o f warm and cool season p e r e n n i a l s , and the four p e r e n n i a l s by themselves. They were as f o l l o w s : 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 'Meyer 1 z o y s i a by i t s e l f 'Meyer 1 z o y s i a and a blend o f f i v e Kentucky b l u e g r a s s v a r i e t i e s 'Meyer' z o y s i a and ' P e n n c r o s s ' c r e e p i n g bentgrass 'Midwest' z o y s i a and the b l u e g r a s s blend 'Midwest' z o y s i a and ' P e n n c r o s s ' ' T u f c o t e ' bermudagrass and the b l u e g r a s s blend ' T u f c o t e ' and ' P e n n c r o s s ' ' T i f g r e e n ' (328) bermudagrass and the b l u e g r a s s blend ' T u f c o t e ' by i t s e l f ' T i f g r e e n ' and ' P e n n c r o s s ' ' P e n n c r o s s ' c r e e p i n g bentgrass by i t s e l f the blend of f i v e Kentucky b l u e g r a s s v a r i e t i e s The Kentucky b l u e g r a s s blend c o n s i s t e d of equal p a r t s of the F y l k i n g , Merion, P e n n s t a r , A-34 and A d e l p h i . varieties Two f e r t i l i z e r treatments were i n i t i a t e d f o r these grass combinations in May 1974. A summer program was imposed over h a l f of the experiment. This c o n s i s t e d of 4 lb of N/1000 square f e e t a p p l i e d as ammonium n i t r a t e in one pound a p p l i c a t i o n s d u r i n g the summer. A f a l l to s p r i n g program of the same amount of ammonium n i t r a t e was a p p l i e d to the o t h e r h a l f . The whole experiment received 2 lb of N as ureaformaldehyde in e a r l y September and two pounds of phosphorus and potash as a 0-20-20 s o l u b l e f e r t i l i z e r . The experiment was mowed a t 3/4 inches in the summer and 1 inch in s p r i n g and f a l l . The bermuda and z o y s i a v a r i e t i e s were e s t a b l i s h e d f i r s t . Then h e a v i l y v e r t i c a l l y mowed and seeded in September 1973 to the b l u e g r a s s blend and 'Penncross' to g i v e the d e s i r e d combinations of warm and cool season g r a s s e s . The f o l l o w i n g r e p o r t i s the r e s u l t s from the e s t a b l i s h m e n t phase and the f i r s t summer o f t r e a t m e n t . These r e s u l t s should thus be e v a l u a t e d as o n l y preliminary findings. The b l u e g r a s s blend and z o y s i a v a r i e t i e s were slow s t a r t e r s and h a v e n ' t looked as good as the bermudagrass v a r i e t i e s and ' P e n n c r o s s ' . I t i s expected t h a t the z o y s i a w i l l prove to be more promising w i t h time. The stand of both z o y s i a v a r i e t i e s was reduced by ' P e n n c r o s s ' overseeded into them but not by bluegrass. 'Meyer' z o y s i a and both z o y s i a - b l u e g r a s s combinations were slow to heal 4 inch c u p - c u t t e r s c a r s l e f t a f t e r removing samples from the p l o t s . Zoysia combinations had low q u a l i t y r a t i n g s during the summer. These same combinations rated much b e t t e r than s i m i l a r bermuda combinations in the f a l l a f t e r the f i r s t f r o s t . The reason f o r t h i s was the z o y s i a combinations r e t a i n e d more of the cool-season grasses through the summer than the bermuda p l o t s . However, 'Meyer 1 p l o t s were s t i l l v e r y p a t c h y . 'Meyer 1 does not appear to blend as w e l l w i t h the cool-season grasses as ' M i d w e s t ' . T h i s was expected as 'Midwest' has long s t o l o n internodes and was o r i g i n a l l y s e l e c t e d f o r the purpose of being used in b l e n d s . I p e r s o n a l l y found 'Midwest' to be too c o a r s e . The wide blades of t h i s v a r i e t y did not form a uniform t u r f w i t h e i t h e r the b l u e g r a s s o r b e n t g r a s s . The bluegrass blend became w e l l e s t a b l i s h e d in the z o y s i a and bermuda p l o t s by the summer of 1974. However, in the bare unprotected p l o t s where i t was supposed to form a pure stand of b l u e g r a s s , i t did not produce a s a t i s f a c t o r y stand by the time f e r t i l i z a t i o n treatments were i n i t i a t e d . With less immediate competition from z o y s i a , the zoys?a-bluegrass p l o t s had more bluegrass in them a t summer's end than the bermuda p l o t s d i d . W h i l e bermuda competition reduced the percentage of b l u e g r a s s under both f e r t i l i z e r programs in the bermuda-bluegrass p l o t s , the bluegrass percentage in z o y s i a - b l u e g r a s s p l o t s responded d i f f e r e n t l y . There was a reduction in the percentage of bluegrass in the z o y s i a p l o t s r e c e i v i n g summer N a p p l i c a t i o n s o n l y . I t should be noted t h a t t h i s o c c u r r e d w i t h o u t a s i g n i f i c a n t i n c r e a s e in the z o y s i a under t h i s f e r t i l i z a t i o n treatment. A r e d u c t i o n in b l u e g r a s s under t h i s f e r t i l i z a t i o n treatment a l s o o c c u r r e d in the pure b l u e g r a s s blend p l o t s . B l u e g r a s s seed moved by wind and w a t e r e s t a b l i s h e d s i g n i f i c a n t s i z e b l u e g r a s s stands in the p l o t s t h a t were supposed to be pure ' T u f c o t e ' and pure ' M e y e r 1 , but not in any p l o t overseeded to b e n t g r a s s . The ' T u f c o t e ' q u i c k l y crowded out t h i s b l u e g r a s s during the summer, but the b l u e g r a s s s t i l l maintained a s i g n i f i c a n t l e v e l in the 'Meyer' p l o t s t h a t were r e c e i v i n g the w i n t e r N program. The percentage o f bentgrass was not s i g n i f i c a n t l y reduced by summer heat and c o m p e t i t i o n as the b l u e g r a s s was. There was s i g n i f i c a n t l y l e s s bentgrass under the summer f e r t i l i z i n g program in the Meyer-bentgrass and the ' T i f g r e e n ' - b e n t g r a s s p l o t s but not in the pure bentgrass p l o t s . During the o v e r s e e d i n g w i t h ' P e n n c r o s s ' t h e r e was c o n s i d e r a b l e contamination of other p l o t s . In May a f t e r the f a l l seeding, bentgrass had establ i s h e d s i g n i f i c a n t s i z e stands in the p l o t s t h a t were suppose to be pure ' T u f c o t e ' and pure 'Meyer' but not in p l o t s overseeded to b l u e g r a s s . 'Tufcote' competed w e l l enough during the summer to reduce t h i s contamination to an i n s i g n i f i c a n t percentage. However, the 'Meyer' p l o t s had s i g n i f i c a n t l y more bentgrass in them by the end of summer than the 1 T u f c o t e 1 - b e n t g r a s s p l o t s . T h i s again emphasizes the slow r a t e of spread found w i t h 'Meyer' z o y s i a g r a s s . The ' T i f g r e e n ' - b e n t g r a s s combination remained c l o s e s t to a 50:50 mixture and appears to be the most promising m i x t u r e . In r e v i e w , I would l i k e to say t h a t in the t r a n s i t i o n zone combinations of warm and cool season grasses may o f f e r a b e t t e r a l l around t u r f than s i n g l e species. However, more research and much time must pass before I am ready to recommend anything but a t r i a l approach to t h i s p o s s i b l e s o l u t i o n to your t u r f problems. SOME OBSERVATIONS ON GROWTH RETARDANTS FOR TURF Ro E. Schmidt* A s s o c i a t e P r o f e s s o r , Department of Agronomy V i r g i n i a P o l y t e c h n i c I n s t i t u t e and S t a t e U n i v e r s i t y Blacksburg, V i r g i n i a and Virginia So Wo Bingham P r o f e s s o r , Department of Agronomy P o l y t e c h n i c I n s t i t u t e and S t a t e U n i v e r s i t y B l a c k s b u r g , Vi rgI ni a The s t u d i e s we have conducted to e v a l u a t e growth r e t a r d a n t s on f i n e t u r f enable one d e f i n i t e conclusion« None of the chemicals t e s t e d can be c o n s i d e r e d a panacea« This has been shown by o t h e r s t u d i e s performed in v a r i o u s p a r t s of the country« Although we have not e v a l u a t e d a l l chemicals t h a t are c o n s i d e r e d growth r e t a r d a n t s , we have s t u d i e d s e v e r a l t h a t have the most p o t e n t i a l f o r t u r f usage« Some may be good t u r f management t o o l s i f used properly« How does one use growth r e g u l a t o r s properly? F i r s t of a l l , the p r e s e n t l y a v a i l a b l e growth r e g u l a t o r s should not be used on t u r f areas t h a t a r e intended t o m a i n t a i n a f i r s t c l a s s c o n d i t i o n « Retardants may g i v e undesired r e s u l t s on greens, t e e s , and f a i r w a y s « Slowing growth w i t h chemicals reduces p l a n t q u a l i t y « The most e f f e c t i v e r e g u l a t o r s u s u a l l y cause a t l e a s t a temporary p h y t o t o x i c e f f e c t on the grass« General appearance may become u n s a t i s f a c t o r y as the o l d e r l e a v e s d i e and new l e a v e s are slow to develop. Mowers a r e s t i l l the best grass growth r e g u l a t o r s on these types of t u r f a r e a s . The most a p p r o p r i a t e p l a c e t o use r e t a r d a n t s a r e on a r e a s t h a t c a n ' t be mowed e f f i c i e n t l y and where a temporary o f f - c o l o r can be t o l e r a t e d « For example, d i t c h banks, rough a r e a s w i t h shrubs o r t r e e s , or steep slopes on which a mower cannot be d r i v e n are areas where a growth r e t a r d a n t can s a t i s f a c t o r i l y be used. S e c o n d l y , i t appears t o be w i s e t o delay a p p l i c a t i o n of the chemical u n t i l a f t e r some s p r i n g growth has been made, p o s s i b l y a f t e r the f i r s t mowing i f some color is desired. I f t r e a t e d in e a r l y s p r i n g before new growth i s e v i d e n t the new l e a v e s a r e r e t a r d e d and subsequently f a i l t o p r o v i d e green t u r f c o l o r as the o l d e r l e a v e s senesce and d e t e r i o r a t e « S i n c e most roots of temperate grasses a r e formed in e a r l y s p r i n g , the a p p l i c a t i o n of a growth r e t a r d a n t w i l l hinder root development. A p p l i c a t i o n a f t e r t h e r o o t s a r e formed seems t o have a l e s s d e t r i mental e f f e c t . T h i r d , heavy dosages should be a v o i d e d . Increased a p p l i c a t i o n r a t e s w i l l not p r o v i d e p r o p o r t i o n a l l y i n c r e a s e d p e r i o d s of reduced growth. A l s o heavy dosages may perform as s t e r i l a n t s r a t h e r than r e g u l a t o r s « *Paper was presented by Dr. R« E . Schmidt F o u r t h , a p p l i c a t i o n s must be uniform to o b t a i n f a v o r a b l e r e s u l t s . The growth r e t a r d a n t s although u n i f o r m l y a p p l i e d may not be u n i f o r m l y e f f e c t i v e . Each s p e c i e s in a t u r f mixture w i l l r e a c t d i f f e r e n t l y to the r e t a r d a n t . Even when the r e t a r d a n t s a r e a p p l i e d t o monospecies t u r f , completely uniform r e s u l t s may not be o b t a i n e d . V a r i a t i o n s of s o i l , f e r t i l i t y , and microenvironments w i t h i n the t u r f community w i l l cause p l a n t s having the same genotype to respond differently. Our r e s e a r c h shows t h a t the growth r e g u l a t o r s we i n v e s t i g a t e d w i l l reduce topgrowth f o r about 6-8 weeks. A f t e r t h i s p e r i o d t h e r e i s some topgrowth stimulation. This regrowth can be checked w i t h a second a p p l i c a t i o n . It is best t o permit some recovery before a second a p p l i c a t i o n i s made in o r d e r to prevent complete d e t e r i o r a t i o n of the p l a n t s . P h y t o t o x i c ! t y e f f e c t s a r e g e n e r a l l y g r e a t e r w i t h summer a p p l i c a t i o n s of r e t a r d a n t s than w i t h s p r i n g t r e a t m e n t s . I t i s p o s s i b l e t h a t lower dosages in summer would o f f s e t these e f f e c t s . The slower growing leaves showed more symptoms of d i s e a s e , p o s s i b l y because they remained in the sward f o r a longer p e r i o d and t h e r e f o r e became l e s s r e s i s t a n t t o i n f e c t i o n as they became o l d e r . Heavy i r r i g a t i o n and f e r t i l i t y l e s s e n the e f f e c t i v e n e s s of the r e g u l a t o r s . On the o t h e r hand, p l a n t growth hindered by l a c k of moisture or f e r t i l i t y w i l l show l i t t l e response from an a p p l i c a t i o n of a growth r e g u l a t o r . Seedhead production was reduced w i t h a p p l i c a t i o n of a l l studied. the i n h i b i t o r s we Delaying s p r i n g a p p l i c a t i o n of c e r t a i n growth r e t a r d a n t s f o r one month a f t e r underground development s t a r t e d gave an i n c r e a s e in Ky bluegrass roots and rhizomes o v e r p l a n t s t r e a t e d e a r l i e r . However, t u r f not r e c e i v i n g an a p p l i c a t i o n of the r e g u l a t o r produced s i g n i f i c a n t l y more roots and rhizomes than any of the t r e a t e d g r a s s . The r e t a r d a n t s t h a t were most growth i n h i b i t i v e a l s o caused the t u r f to have the poorest appearance. However, the e f f e c t was temporary and grass from a l l p l o t s recovered in f o u r weeks a f t e r the i n i t i a l a p p l i c a t i o n . T h i s was a l s o observed when a summer a p p l i c a t i o n ( J u n e ) was made f o l l o w i n g a s p r i n g treatment (April). Although we a r e not in a p o s i t i o n to recommend any growth r e t a r d a n t based on the l i m i t e d data we have o b t a i n e d , we f e e l t h a t t h r e e may have p o t e n t i a l . S u s t a r , M a i n t a i n , and HIR-R07-6145 gave the most topgrowth c o n t r o l w i t h the least phytotoxic!ty. HLR-R07-6145 gave e x c e l l e n t c o n t r o l of chickweed and V e r o n i c a , a d i f f i c u l t weed t o c o n t r o l . I t a l s o gave some r e d u c t i o n of O x a l i s . Maintain provided e x c e l l e n t c o n t r o l of chickweed and O x a l i s and p a r t i a l c o n t r o l of V e r o n i c a . No o t h e r weeds were observed t o be c o n t r o l l e d by the o t h e r c h e m i c a l s . A greenhouse t e s t in which one inch of i r r i g a t i o n was a p p l i e d a t d i f f e r e n t i n t e r v a l s a f t e r treatment showed t h a t i r r i g a t i o n should not be a p p l i e d f o r two hours a f t e r a p p l i c a t i o n of the r e g u l a t o r s . This was e s p e c i a l l y t r u e f o r the Sustar treatment. Although growth r e t a r d a n t s a r e not completely p e r f e c t e d f o r use on f i n e t u r f , î f used w î t h î n t h e i r l i m i t a t i o n s they can be e f f e c t i v e in some t u r f a r e a s . Retardants appear to be most e f f e c t i v e on f i n e t u r f s p e c i e s t h a t are of the dwarf or slow growing t y p e . NEMATODES IN TURFGRASS Joseph Professor, Troll Department of P l a n t and S o l l U n i v e r s i t y of Massachusetts Amherst, Massachusetts Science "Nematodes in t u r f g r a s s , " permits a v e r y broad coverage of the s u b j e c t . However, I intend t o d e s c r i b e what p l a n t p a r a s i t i c nematodes a r e , review b r i e f l y what i n j u r y they can cause t o g r a s s , r e l a t e some of my e a r l i e r work on nematodes and my present endeavors w i t h one nematode, and a l s o touch on chemical c o n t r o l . Nematodes a r e found on land and in water from the A r c t i c t o the E q u a t o r . The g r e a t e r numbers, however, a r e most o f t e n found in the warmer r e g i o n s . There are a l l types of nematodes: those a s s o c i a t e d w i t h a n i m a l s , o t h e r s w i t h p l a n t s , and s t i l l o t h e r s f e e d i n g on decaying o r g a n i c m a t t e r . Our i n t e r e s t i s w i t h those t h a t p a r a s i t i z e c e l l s of t u r f g r a s s roots and a r e pathogenic. T h e i r s i z e , length and w i d t h i s measured in microns. A micron i s about one t w e n t y - f i v e thousandths of an i n c h . Because of t h e i r s i z e and the f a c t t h a t they a r e t r a n s l u c e n t , a microscope i s needed t o observe them. I t i s not uncommon f o r t u r f managers to mistake the t h r e a d - l i k e l a r v a e of b e e t l e s f o r nematodes. Even the l a r g e r p l a n t nematodes a r e not e a s i l y d i s c e r n i b l e w i t h the naked e y e . They v a r y in shape according to s p e c i e but most nematodes i n f e s t i n g t u r f a r e snake or worm-like. T h e i r l i f e c y c l e , in g e n e r a l , c o n s i s t s of an egg, f o u r l a r v a l s t a g e s , and an adult. P l a n t nematodes a r e o f t e n d i v i d e d i n t o groups a c c o r d i n g to t h e i r method of p a r a s i t i s m . There a r e e c t o p a r a s i t e s which complete t h e i r l i f e c y c l e o u t s i d e the h o s t , f e e d i n g on the p l a n t ' s s u r f a c e or near s u r f a c e c e l l s . The o t h e r group is known as e n d o p a r a s i t e s which spend p a r t or a l l of t h e i r l i f e c y c l e f e e d i n g w i t h i n the p l a n t t i s s u e . P l a n t p a r a s i t i c nematodes f e e d by i n j e c t i n g a n e e d l e - l i k e s t r u c t u r e , termed a s t y l e t , i n t o the l i v i n g c e l l of the g r a s s r o o t . A d i g e s t i v e enzyme i s then pumped by the nematode through the s t y l e t i n t o the c e l l . The c e l l contents a r e p r e d i g e s t e d and withdrawn through the s t y l e t f o r i n g e s t i o n . Enzyme s e c r e t i o n s by some nematode s p e c i e s cause an a l t e r a t i o n of the p l a n t ' s c e l l growth which r e s u l t s in a b n o r m a l i t i e s of the root t i s s u e . P e r i o d i c a l l y p u b l i s h e d r e p o r t s of p a r a s i t i c nematodes a s s o c i a t e d w i t h t u r f g r a s s e s suggest p l a n t i n j u r y by the organism. They f a i l t o r e l a t e the t r u e nature of the r e l a t i o n s h i p o r i t s p a t h o g e n i c i t y . Such r e p o r t s a r e o f t e n simply the r e s u l t of a f i e l d s u r v e y . For i n s t a n c e , in 195*+ I took samples from a l a r g e number of g o l f greens in Rhode I s l a n d and Massachusetts. These t u r f g r a s s samples were taken from a r e a s t h a t d i s p l a y e d symptoms of c h l o r o s i s and/or dieback. Many of the nematode s p e c i e s e x t r a c t e d from these t u r f samples were i d e n t i f i e d as p a r a s i t i c . However, no experiments were i n i t i a t e d t o determine i f these suspected pathogens a c t u a l l y caused the c h l o r o s i s o r d i e b a c k . Nematode p a t h o g e n i c i t y on t u r f g r a s s i s not always e a s i l y determined but c o n s i d e r a b l e progress toward t h i s end has been made in the l a s t twenty y e a r s . As mentioned above, nematodes f e e d on i n d i v i d u a l c e l l s . Depending upon the s p e c i e s of nematode, i t s e f f e c t on the c e l l , the p o p u l a t i o n of nematodes f e e d i n g , and the p a r t i c u l a r h o s t , v a r y i n g and m u l t i p l e symptoms may o c c u r . There are known nematodes t h a t feed on grass root c e l l s w i t h o u t causing n o t i c e a b l e i n j u r y to c e l l s , but t h a t do b r i n g about a reduction of e i t h e r the p l a n t ' s top growth, root growth o r both. There are some nematodes t h a t cause a s h r i v e l e d shortened root system but not root l e s i o n s . Others cause v a r i o u s l y shaped s w e l l i n g s of the r o o t . S t u n t i n g of both p l a n t roots and shoots, c h l o r o s i s o f the l e a v e s , as w e l l as root g a l l s , are caused by s t i l l o t h e r nematode s p e c i e s . I t i s a l s o important to p o i n t out t h a t nematodes can s e v e r e l y reduce t u r f g r a s s root systems w i t h o u t producing n o t i c e a b l e above-ground symptoms. However, symptoms may become e v i d e n t when the p l a n t s are s u b j e c t e d to s t r e s s . Nematodes have been shown to be v e c t o r s of v i r a l d i s e a s e s . They a r e in c o n s t a n t a s s o c i a t i o n w i t h s o i l microorganisms i n c l u d i n g fungi and could v e r y w e l l be i n v o l v e d w i t h fungus-caused d i s e a s e s of t u r f . Root i n j u r i e s i n c u r r e d by nematodes could a l s o provide areas of e n t r a n c e by pathogenic f u n g i . As a m a t t e r of f a c t , o b s e r v a t i o n s of fungus d i s e a s e s on t u r f g r a s s appearing to have been a f f e c t e d by nematodes have a l r e a d y been r e p o r t e d . Dr. H a l l r e c e n t l y wrote to me of t h i s p o s s i b i l i t y o c c u r r i n g in Maryland t u r f . My l a t e s t endeavor i s one t h a t f o l l o w s along s i m i l a r l i n e s , t h a t i s , experimenting w i t h a s p e c i e Lonqidorus. Longidorus, a r a t h e r l a r g e nematode, has been known to t r a n s m i t v i ral d i seases. Lonqidorus was found to be i n f e s t i n g p o o r l y growing Poa annua on s e v e r a l New England g o l f c o u r s e s . The i n f e s t e d t u r f was s h o r t rooted and could be peeled back l i k e a c a r p e t . Experimentation w i t h nematodes r e q u i r e s a f a i r l y c o n s t a n t source of inoculum. A review of l i t e r a t u r e i n d i c a t e d t h a t the organism could be propagated on spearmint grown in sandy s o i l . However, a more i n t e n s i v e study o f the l i t e r a t u r e showed t h a t Lonqi dorus i s a v e r y d e l i c a t e nematode. To c u l t i v a t e i t the host p l a n t must be watered w i t h demineralized w a t e r and the w a t e r must be a p p l i e d by s u b i r r i g a t i o n methods. In a d d i t i o n o n l y c e r t a i n types of f e r t i l i z e r can be used to supplement the p l a n t ' s n u t r i tion. A p p l i c a t i o n of the wrong form of f e r t i l i z e r and water would r e s u l t in the death of the organism. The p o i n t i s , i f such c a r e i s r e q u i r e d to propagate Long!dorus, one wonders how i t s u r v i v e s In the f i e l d . To date the o n l y r e s u l t we have been a b l e to o b t a i n i s t h a t the nematode does cause a s w e l l i n g of spearmint root t i p s . The nematode i s pathogenic on spearmint. The t e s t s , however, w i l l c o n t i n u e f o r a t l e a s t one more y e a r . Grass s p e c i e s , as w e l l as c u l t i v a r s , v a r y in s u s c e p t i b i l i t y to nematode pathogenicity. Warm temperature i s one f a c t o r t h a t f a v o r s nematode a c t i v i t y and because of the temperature f a c t o r southern grown grasses are more o f t e n affected. There have been many p u b l i c a t i o n s r e p o r t i n g damage by many d i f f e r e n t s p e c i e s of nematodes on grasses grown in the S o u t h e a s t . S t i l l , many of the p a r a s i t e s belonging to the same genera have been found on t u r f g r a s s e s grown in the North. In the e a r l y to m i d - s i x t i e s a study o f two of these nematodes and t h e i r e f f e c t on s e v e r a l t u r f g r a s s s p e c i e s was made. The two nematodes s t u d i e d are known as Ty1enchorhynchus, the s t u n t nematode, and P r a t y l e n c h u s , the l e s i o n nematode. The former i s an e c t o p a r a s i t e and the l a t t e r an e n d o p a r a s i t e . These two nematodes were chosen f o r study because of t h e i r widespread occurance on t u r f and because both nematodes could be c u l t u r e d a x e n i c a l l y . R y e g r a s s , c r e e p i n g red fescue and Kentucky b l u e g r a s s were s e l e c t e d as h o s t s . The experiments c o n s i s t e s s e n t i a l l y of r e p l i c a t i o n s of each of the three grass s p e c i e s , each grown s i n g l y in a n u t r i e n t agar in t e s t tubes f r e e of organisms. A c e r t a i n number of each grass specie were i n d i v i d u a l l y i n o c u l a t e d w i t h l e s i o n nematodes and another group w i t h the s t u n t nematode. P l a n t s of each grass s p e c i e were a l s o kept as c o n t r o l s . Semi-weekly t h e r e a f t e r two p l a n t s of each grass s p e c i e were removed from the tubes, the roots examined, and the nematodes then r e - i s o l a t e d and counted. Shoot growth of the t h r e e grass s p e c i e s was not a f f e c t e d by e i t h e r nematode. Many l e s i o n nematodes and t h e i r eggs were l o c a t e d o n l y in the c o r t e x of both primary and l a t e r a l roots of ryegrass and fescue but the nematode was found o n l y in the roots of two Kentucky b l u e g r a s s p l a n t s . Nematode l e s i o n s were never apparent on the roots of any of the i n o c u l a t e d grasses but the w a l l s of the c o r t i c a l c e l l s were torn by movement of the p a r a s i t e . The i n j u r e d c e l l s were not d i s c o l o r e d nor was t h e r e any semblance of n e c r o s i s . The s t e l l a r t i s s u e , phloem and xylem, appeared u n a f f e c t e d . The s t u n t nematode, an e c t o p a r a s i t e , was never found w i t h i n the roots of any of the grasses nor was i t s s t y l e t puncture of the c e l l s e v e r d i s c e r n i b l e . A s e r i e s o f greenhouse experiments was made to determine the gross e f f e c t s of the same two nematodes on the same t h r e e t u r f g r a s s e s . Ten p l a n t s of each grass s p e c i e were p l a n t e d in s t e a m - s t e r i l i z e d s o i l placed in p l a s t i c p o t s . The requirements o f the grass in each p o t , pH, f e r t i l i t y , w a t e r , and mowing h e i g h t , were m a i n t a i n e d . Each pot of t u r f g r a s s was i n o c u l a t e d w i t h e i t h e r 5000 l e s i o n or 5000 s t u n t nematodes and c o n t r o l s were maintained. Three and o n e - h a l f months a f t e r i n o c u l a t i o n the nematodes, were e x t r a c t e d and counted. The top growth of the nematode-infested r y e g r a s s and fescue appeared as h e a l t h y as the top growth of the c o n t r o l g r a s s e s . No l e s i o n nematodes were removed from e i t h e r the s o i l o r roots of Kentucky b l u e g r a s s . The s t u n t nematode caused r e d u c t i o n o f the root weight of c r e e p i n g red f e s c u e . A second t e s t was made s i m i l a r to the f i r s t greenhouse t r i a l , except t h a t no f e r t i l i z e r was added during the experiment and nematodes were recovered a f t e r two months. Both nematodes p a r a s i t i z e d the t h r e e grass s p e c i e s . Y e t , the top growth of the t h r e e grass s p e c i e s i n f e c t e d w i t h e i t h e r nematode appeared h e a l t h y . The l e s i o n nematode s i g n i f i c a n t l y reduced the root weight of r y e g r a s s , however, the shoot weight of the r y e g r a s s i n f e s t e d w i t h the s t u n t nematode was i n c r e a s e d . R e s u l t s of these experiments i n d i c a t e d t h a t both nematodes were pathogenic but the e f f e c t s on the grasses were s l i g h t , p a r t i c u l a r l y when the grass was growing well. I n j u r y to the c o r t i c a l c e l l s of the grass by the l e s i o n nematode could a f f e c t the uptake of n u t r i e n t s and w a t e r , p a r t i c u l a r l y in the f i e l d where these f a c t o r s are l i k e l y to be l i m i t e d . Nematode c o n t r o l can be o b t a i n e d in a number of ways but on e s t a b l i s h e d t u r f i t can be seen t h a t the a p p l i c a t i o n of chemicals i s n e c e s s a r y . There are a number of nematocides on the market, some more e f f e c t i v e a g a i n s t a p a r t i c u l a r s p e c i e than o t h e r s . A l l a r e t o x i c to humans but s e v e r a l a r e extremely t o x i c . However, w i t h the many v a r i a b l e s o c c u r r i n g in the f i e l d i t i s not always poss i b l e to c r e d i t t u r f improvement to a reduction o f nematodes r e s u l t i n g from an a p p l i c a t i o n of a nematocide. We c o n d u c t e d nematocide t e s t s in the p a s t and a g a i n l a s t s p r i n g . The e a r l i e r i n v e s t i g a t i o n i n v o l v e d the e v a l u a t i o n o f seven n e m a t o c i d e s compared to an a p p l i c a t i o n o f f e r t i l i z e r . To d e t e r m i n e the e f f e c t s o f t r e a t m e n t s , c l i p p i n g and r o o t w e i g h t s were m e a s u r e d . The f e r t i l i z e r and one nematocide increased c l i p p i n g weights. F e r t i l i z e r improved t u r f c o l o r . A l l nematocides reduced the number o f p a r a s i t i c nematodes, two o f them more e f f e c t i v e l y than the o t h e r s « The f e r t i l i z e d p l o t s c o n t a i n e d the h i g h e s t number o f p a r a s i t i c nematodes. Root w e i g h t s were n o t a f f e c t e d by any n e m a t o c i d e t r e a t m e n t . In l a s t y e a r ' s nematocide t r i a l a s i n g l e chemical was a p p l i e d a t t h r e e different rates. A t a l l r a t e s the chemical i n j u r e d the t u r f , w h i c h r e c o v e r e d , a l l the t r e a t e d t u r f p l o t s a p p e a r i n g d a r k e r g r e e n in c o l o r and h e a l t h i e r than the c o n t r o l s . The p o i n t , however, i s t h a t t h e r e were v e r y few, i f a n y , p a r a s i t i c nematodes in any o f the t e s t p l o t s p r i o r to chemical a p p l i c a t i o n . It i s p o s s i b l e t h a t in both nematocide t r i a l s , s t i m u l a t i o n o f g r a s s growth may have been b r o u g h t about by the e f f e c t s o f s o i l f e r t i l i t y and i t s i n t e r a c t i o n w i t h the n e m a t o c i d e s . A l s o , in the f i r s t t e s t the n e m a t o c i d e s reduced p a r a s i t i c nematodes and a t the same time i n c r e a s e d n u t r i e n t a v a i l a b i l i t y , b o t h o f w h i c h c o u l d have s t i m u l a t e d p l a n t g r o w t h . In a d d i t i o n , some n e m a t o c i d e s a r e known to have e i t h e r i n s e c t i c i d a l o r f u n g i c i d a l a c t i v i t y and t h i s i n s e c t o r f u n g u s c o n t r o l c o u l d a c c o u n t f o r t u r f improvement. When w o r k i n g w i t h a b i o l o g i c a l e n t i t y , e s p e c i a l l y s o i l i n h a b i t a n t s , i t can be v e r y d i f f i c u l t to obtain clear-cut results. To sum up - - T h e r e a r e many p a r a s i t i c nematodes p a t h o g e n i c on t u r f g r a s s and they a p p e a r to be most damaging to t u r f g r a s s e s in the S o u t h e a s t . Pathog e n i c nematodes c a u s e r o o t l e s i o n s , s l o u g h t i s s u e , v a r i o u s l y shaped s w e l l i n g s o f the g r a s s r o o t , and o t h e r e f f e c t s . Above g r o u n d symptoms most o f t e n are n o t d i s c e r n i b l e e x c e p t p o s s i b l y when p o p u l a t i o n b u i l d - u p and s t r e s s o c c u r . C h l o r o s i s and t h i n n i n g a r e the u s u a l top symptoms. N e m a t o c i d e s , some more s p e c i f i c f o r the c o n t r o l o f a p a r t i c u l a r nematode than o t h e r s and s e v e r a l more t o x i c , w i l l reduce nematode p o p u l a t i o n . Remember, they reduce numbers and repeated a p p l i c a t i o n s may be needed to keep p o p u l a t i o n s low. Most i m p o r t a n t - i f nematodes a r e s u s p e c t e d , b e f o r e a p p l y i n g a c o n t r o l , c h e c k w i t h a t r a i n e d n e m a t o l o g i St.- Have him i d e n t i f y the p a r a s i t e s p r e s e n t and t h e i r numbers, then c h o o s e and a p p l y the c o r r e c t c o n t r o l s . L a s t , there i s a need f o r i n c r e a s e d and more t h o r o u g h i n v e s t i g a t i o n o f p a r a s i t i c nematodes found a s s o c i a t e d w i t h t u r f g r a s s e s . Couch, H. B. 1973. D i s e a s e s o f t u r f g r a s s e s c a u s e d by p a t h o g e n i c nematodes, Diseases of Turfgrasses. Krieger, New Y o r k . Chap. 3 , PP* 1 5 8 - 1 8 4 . Monku, R. 1959. Natural enemies o f nematodes. C a l i f . Agr. 13 ( 9 ) , 24. T r o l l , J . and R. A . Rohde. 1966. Pathogenicity of Praty1enchus penetrans T y 1 e n c h o r h y n c h u s c l a y t o n i on t u r f g r a s s e s . Phytopath, 56: 995-998. T r o l l , J . and R. A . Rohde. 1966. The e f f e c t s o f n e m a t o c i d e s on growth. P l a n t D i s . R e p t r . 50: 4-90-492. turfgrass and EFFICIENCY AND SAFETY IN CONTROLLING WEEDS ON THE GOLF COURSE Professor, Ralph E . Engel S o i l s and Crops Department Rutgers U n i v e r s i t y Chemical weed c o n t r o l has become a g r e a t t o o l in growing t u r f . I t has brought more improvement in the l a s t 25 y e a r s than any o t h e r phase of t u r f g r a s s management. Y e t , c a r e l e s s use of t h i s procedure i s dangerous t o t u r f ; and, on o c c a s i o n s , h e r b i c i d e s have done more harm t o the g r a s s than we have r e a l i z e d . C e r t a i n steps g e n e r a l l y apply when we attempt t u r f g r a s s weed c o n t r o l hoping to o b t a i n the best r e s u l t s w i t h the g r e a t e s t e f f i c i e n c y and s a f e t y . The f i r s t step i s growing good t u r f . T h i s reduces the n e c e s s i t y f o r frequent use of h e r b i cides t h a t may i n j u r e the g r a s s . S e c o n d l y , choose the c o r r e c t h e r b i c i d e . This becomes more d i f f i c u l t as more and more h e r b i c i d e s and v a r i a t i o n s of t h e i r use occurs. I f t h e r e i s no c l e a r answer as t o which chemical should be a p p l i e d , use the e s t a b l i s h e d chemicals t h a t you have known and worked w i t h b e f o r e . There a r e times when you must t r y a new chemical f o r the f i r s t t i m e . Check w i t h o t h e r p r o f e s s i o n a l t u r f g r a s s managers on such o c c a s i o n s . This may be a good procedure even though you know the c h e m i c a l . T h i r d , know when to use a h e r b i c i d e . One aspect of determining when to use a chemical i s the r e l a t i v e b e n e f i t s and r i s k s involved. No h e r b i c i d e makes the grass grow b e t t e r . I f the weed problem i s worse than the i n j u r y r i s k , treatment i s j u s t i f i a b l e . A p p l i c a t i o n at the c o r r e c t time of the y e a r i s an important concern in h e r b i c i d e use. W h i l e dandelions can be t r e a t e d too e a r l y w i t h 2,4-D f o r good k i l l , i t is j u s t as important to apply t h i s chemical in time t o prevent a l a r g e crop of seedheads. In the case of preemerge h e r b i c i d e s , most of these perform best when they are a p p l i e d 2 o r 3 weeks in advance of c r a b g r a s s g e r m i n a t i o n . Fourth, applying the c o r r e c t r a t e i s important. Too l i t t l e g i v e s poor c o n t r o l and too much can cause s e r i o u s i n j u r y and waste money. The f i r s t step i s determining the amount of chemical c o n c e n t r a t e r e q u i r e d per u n i t area f o r use in c a l i b r a t i o n of the spreader or s p r a y e r . Recheck the c a l c u l a t i o n s to assure no mistake has been made. The second step i s to c a l i b r a t e the spreader or s p r a y e r . This may take c o n s i d e r a b l e time i f you a r e u n f a m i l i a r w i t h equipment or i t i s working poorly. At the time of c a l i b r a t i o n , make sure the equipment has a uniform spreading p a t t e r n . A t t a i n i n g complete c o n t r o l of t u r f weeds, i . e . , to the l a s t weed, i s e f f i c i e n t f o r many s i t e s . This i s e s p e c i a l l y t r u e on small areas and w i t h weeds such as c r a b g r a s s , d a n d e l i o n , and goosegrass. Once the number of weeds i s reduced t o a few, hand removal o r spot treatment on a r e g u l a r b a s i s may be e a s i e r and s a f e r than a l l o w i n g a few weeds to i n c r e a s e i n t o a problem t h a t r e q u i r e s use o f a s e v e r e h e r b i c i d e treatment a t an e a r l y d a t e . Suggestions on S e v e r a l Weeds and H e r b i c i d e s I t i s standard procedure to use 2,4-D f o r d a n d e l i o n , buckhorn and b r o a d l e a f plantain. Y e t , a s p e c i a l d i s t i n c t i o n should be made on g o l f t u r f where bentgrass and annual bluegrass are o f t e n the major g r a s s e s . W i t h these s p e c i e s , use of 1/2 t o 3/4 l b . a c t i v e i n g r e d i e n t per a c r e (Al/A) of 2,4-D w i l l g i v e q u i t e s a t i s f a c t o r y c o n t r o l w i t h l e s s r i s k to the t u r f . This c o n t r a s t s w i t h the 1 t o l b . Al/A r a t e which i s a p p r o p r i a t e on Kentucky bluegrass lawns and roughs. On o c c a s i o n s , use low v o l a t i l e 2,4-D f o r g r e a t e r s a f e t y to nearby p l a n t s . When c l o v e r , c h i c k weed and/or knotweed a r e present in bentgrass-annual b l u e g r a s s f a i r w a y s in the s p r i n g , use the lower r a t e of 1/2 lb Al/A 2,4-D w i t h 1/8 t o 1/4 lb Al/A of dicamba. Some may p r e f e r to use the commercial mixes f o r these weeds on the g o l f c o u r s e , but these h e r b i c i d e p r e p a r a t i o n s should be checked f o r the t o t a l of the r e l a t e d compounds o f 2,4-D, S i l v e x and mecoprop. When these t o t a l 1 lb/A o r more, the r i s k to the t u r f becomes s i m i l a r t o the use of a high r a t e of 2,4-D alone. When c l o v e r , chickweed and/or knotweed o c c u r , s p r i n g t r e a t m e n t , w e l l in advance of hot w e a t h e r , i s recommended. U s u a l l y , t h i s can be done as soon as the c l o v e r has good l e a f growth. When these weeds occur w i t h no d a n d e l i o n s , dicamba a t 1/4 lb Al/A i s adequate. Some may wish to use the phenoxys such as mecoprop and s i l v e x . A g a i n , w i t h bentgrass-annual b l u e g r a s s t u r f , t h i s r a i s e s concern over the l a r g e t o t a l o f phenoxy m a t e r i a l being a p p l i e d . S i l v e x i s always q u e s t i o n a b l e on f i n e t u r f and r a t h e r than use mecoprop a l o n e , i t might be combined w i t h dicamba. Preemerge f o r c o n t r o l of c r a b g r a s s and gooseqrass — Control of c r a b g r a s s w i t h the a v a i l a b l e preemerge h e r b i c i d e s is q u i t e good but they a r e o f t e n l e s s s a t i s f a c t o r y on goosegrass. Y e t , the t u r f g r o w e r has no c h o i c e but to use these chemicals on many o c c a s i o n s . C a r e f u l and we 11-conceived use o f these chemicals becomes important. Control of annual b l u e g r a s s -- B e f o r e g o l f course s u p e r i n t e n d e n t s in the c o o l e r l a t i t u d e s c o n s i d e r a l l - o u t a t t a c k s on annual b l u e g r a s s , they should c o n s i d e r t h e i r chances o f growing t h i s g r a s s s u c c e s s f u l l y . In some of our c o o l e r c l i m a t e s , i t should not be looked upon as a weed. I f you c o n s i d e r annual bluegrass a weed, you must s t i l l r e l y h e a v i l y on management f o r c o n t r o l because we do not have h e r b i c i d e panaceas. Of the chemicals a v a i l a b l e , t r i - c a l c i u m a r s e n a t e has g i v e n the best c o n t r o l in s p i t e of the f a c t t h a t i t i s a r i s k y chemical. C u r r e n t l y , the u n a v a i l a b i l i t y of t h i s chemical does not l e a v e us w i t h any simple method of e l i m i n a t i n g the annual b l u e g r a s s problem. A number of our preemerge h e r b i c i d e s a r e q u i t e good a t p r e v e n t i n g annual b l u e g r a s s g e r m i n a t i o n . But the need f o r longer r e s i d u a l a c t i v i t y from l a t e summer through s p r i n g plus t h e i r i n a b i l i t y t o c o n t r o l the v e g e t a t i v e types of annual b l u e g r a s s do not make them a good p r o s p e c t f o r c o n t r o l of t h i s weed. Endothal showed some s e l e c t i v i t y on annual b l u e g r a s s in bentgrass t u r f i n our t e s t s of some y e a r s ago. We n e v e r , and do not now, propose t h a t i t can be used as an e r a d i c a n t f o r annual b l u e g r a s s . When used in e a r l y s p r i n g during c o o l e r w e a t h e r , before the f l u s h of heavy growth, s e v e r a l endothal treatments w i l l depress the annual b l u e g r a s s content of the t u r f and c o n t r o l c l o v e r . This type procedure w i l l help bentgrass remain dominant. The endothal treatment i s inexpensive and l e a v e s no r e s i d u e problem. When concerned about annual b l u e g r a s s , u t i l i z e the management t o o l s t h a t minimize t h i s weed. F i r s t , a v o i d l o s s of t u r f b y : (a) w a t e r i n g t o save the bentgrass - not annual b l u e g r a s s , (b) d i s e a s e c o n t r o l , (c) i n s e c t c o n t r o l , (d) d i s c r e e t mowing and (e) spreading t r a f f i c . S e c o n d l y , use the minimum amount of water f o r bentgrass growth in l a t e summer when annual b l u e g r a s s might germinate. T h i r d , use a minimum of n i t r o g e n r e q u i r e d f o r the b e n t g r a s s . No M i s t a k e s w i t h Herbicides "No m i s t a k e s " i s a big o r d e r but the d i s a s t e r of a wrong h e r b i c i d e a p p l i c a t i o n i s about the worst t h i n g t h a t can happen t o a t u r f . An important step in a v o i d i n g mistakes i s knowing the c h e m i c a l s . Do not r e l y on t r a d e names o n l y ; l e a r n to a s s o c i a t e these w i t h the common chemical name. M a i n t a i n i n f o r m a t i o n on such t h i n g s as the s a f e r a t e s of a p p l i c a t i o n , residue problems, s a f e t y concerns f o r the a p p l i c a t o r , the weeds t h a t a r e c o n t r o l l e d e f f e c t i v e l y , e t c . Possibly, such records should be maintained f o r each chemical and weed on a 5 x 8" c a r d . Check w i t h o t h e r s on the use of a h e r b i c i d e . This is e s p e c i a l l y true for the newer c h e m i c a l s . Opinions on such t h i n g s as c h o i c e of c h e m i c a l s , r a t e s of a p p l i c a t i o n , e f f e c t i v e n e s s of the t r e a t m e n t , and t i m e l i n e s s of the a p p l i c a t i o n commonly need c o n s i d e r a t i o n . Do not h e s i t a t e t o c a l l someone e l s e f o r a quick opinion. Mistakes in a p p l i c a t i o n r a t e and techniques can be avoided. Allow p l e n t y of time to prepare f o r an h e r b i c i d e a p p l i c a t i o n . T h i s w i l l permit rechecking the r a t e . A l s o , i t g i v e s time t o check on the d e l i v e r y r a t e of the a p p l i c a t i o n equipment and the u n i f o r m i t y of d i s t r i b u t i o n . C o n t i n u a l l y recheck the a p p l i c a t i o n r a t e during use of the c h e m i c a l . H e r b i c i d e s a r e one of our most v a l u a b l e t o o l s in t u r f p r o d u c t i o n . Adversely, they a r e among the most r i s k y p r a c t i c e s . Keep up-to-date on h e r b i c i d e s and s t r i v e c o n t i n u a l l y to improve your p r o f e s s i o n a l i s m w i t h h e r b i c i d e s . CUTTING CORNERS WITH EQUIPMENT Alexander M. Radko E a s t e r n D i r e c t o r and N a t i o n a l Research USGA Green S e c t i o n Highland P a r k , New J e r s e y Director New courses today have a wider s e l e c t i o n of b e t t e r equipment than e v e r before. The g o l f course s u p e r i n t e n d e n t has a c h o i c e of the one motor and frame (power pack type) w i t h s e v e r a l i n t e r c h a n g e a b l e u n i t s f o r v a r i o u s maintenance f u n c t i o n s or the c o n v e n t i o n a l complete u n i t each p r o p e l l e d by i t s own motor and used mainly f o r j u s t one t a s k . The former i s not a new concept, i t has been t r i e d b e f o r e , but now manufacturers are responding to g o l f maintenance needs b e t t e r than e v e r b e f o r e . We a l l have seen recommended equipment l i s t s f o r an 18-hole g o l f c o u r s e . We have one of our own which has been published in our Green S e c t i o n Record. I t l i s t s a l l the necessary equipment f o r normal o p e r a t i o n , i t emphasizes the need f o r a mechanic and a we 11-organ?zed workshop as the beginning o f a sucn Down-time M must be kept to a minimum, o t h e r w i s e cessful operation. it will ruin you. T h e r e ' s no b e t t e r way to keep machines going than to employ a good mechanic. A s u p e r i n t e n d e n t cannot t i e h i m s e l f down to the bench - too much gets away from him, c o n t r o l i s l o s t and soon he loses out i f he t r i e s to double as a mechanic. Good equipment begs good o p e r a t o r s ; they must be t r a i n e d in proper equipment use. They must know what the s u p e r i n t e n d e n t ' s goals a r e , they must know what i s expected of them so t h a t they can do e v e r y t h i n g r i g h t the f i r s t time. To do i t r i g h t means t h a t the equipment should be in good running c o n d i t i o n a t a l l times. Good mechanics know they must read and understand the s e r v i c e i n s t r u c t i o n s t h a t accompany e v e r y p i e c e of equipment. A good mechanic has good rapport w i t h the crew so t h a t he can r e l a y the s p e c i a l i n s t r u c t i o n s f o r the use of e v e r y machine and the crew in turn can a c c u r a t e l y r e p o r t back t r o u b l e symptoms to him. E f f i c i e n t use of equipment a l s o means the r i g h t machine f o r e v e r y j o b . The s u p e r i n t e n d e n t must o r g a n i z e and manage so t h a t the machinery r e q u i r e d i s o p e r a b l e when needed. Mechanical sand rakes, t r i p l e x greens mowers, a e r a t o r s , t h a t c h e r - s e e d e r s and a l l kinds of e x c e l l e n t mowing machines have made the j o b e a s i e r and have i n c r e a s e d j o b e f f i c i e n c y f a r beyond what was p o s s i b l e not too many y e a r s ago. How you harness t h i s e f f i c i e n c y and a l l o c a t e s a v i n g s to o t h e r areas of maintenance r e f l e c t s upon your a b i l i t y as a l e a d e r and s u p e r v i s o r . A harmonious r e l a t i o n s h i p w i t h your membership and crew is dependent upon your a b i l i t y to s e t up j o b p r i o r i t i e s in a workable manner and execute them w i t h d i spatch. To have machinery in t i p - t o p shape the year-around depends g r e a t l y on whether you are e f f e c t i v e in w i n t e r r e p a i r . Major o v e r h a u l i n g i s done in the o f f - s e a s o n by the work crew as d i r e c t e d by the mechanic o r by sending i t out to a r e p a i r shop. When s p r i n g comes, a l l machinery should be ready to go and h o p e f u l l y w i l l l a s t the season, except f o r the usual minor r e p a i r , adjustments, spark plug replacement, b a c k - l a p p i n g , e t c . Read and abide by the s e r v i c e manuals - they a r e the key to more e f f i c i e n t r e p a i r , which in turn i s the springboard to more e f f i c i e n t o p e r a t i o n o f a l l equipment. There i s no easy s o l u t i o n to s u p e r v i s o r has h i s own technique e f f e c t i v e end. The goal f o r a l l , the important ways of g e t t i n g the the e f f i c i e n t use of equipment« Every in blending man and machine to the most however, i s the same and here a r e some of most out of your equipment. (1) T r a i n o p e r a t o r s in proper use and h a n d l i n g of machines c o r r e c t speed, i . e . , two-cycle engines are run a t h i g h e r speeds and t h e r e f o r e more a l e r t o p e r a t o r s are r e q u i r e d , f o u r - c y c l e machinery should not be used on h i l l s , e t c . (2) A l l o w the mechanic to a t t e n d s e r v i c e schools f i rms. (3) Assign one machine (where p o s s i b l e ) to one worker who w i l l be r e s p o n s i b l e f o r c a r e and f a u l t l e s s o p e r a t i o n of t h a t s p e c i f i c machine; he w i l l r e p o r t problems in w r i t i n g , c l e a n and s e r v i c e i t w i t h o i l , gas and grease i t b e f o r e s t o r i n g i t in i t s assigned p l a c e a f t e r each o p e r a t i o n . (k) Any s e r v i c e beyond t h a t mentioned above should be handled by the mechanic. A i r f i l t e r c l e a n i n g or changes, adjustments, g r i n d i n g , back-lapping, e t c . should be the r e s p o n s i b i l i t y of the mechanic. Keep needed small p a r t s stocked - keep a good small p a r t s i n v e n t o r y . (5) Have a check l i s t f o r e v e r y p i e c e of equipment f o r b e f o r e and a f t e r e v e r y use. (6) Use v e h i c l e s to t r a n s p o r t s m a l l e r machines where p o s s i b l e . S i n g l e greens mowers e s p e c i a l l y could be knocked out of adjustment e a s i l y i f walked from green to green. (7) Be sure to use the w a r r a n t y t h a t comes w i t h e v e r y p i e c e of equipment. Warranty r e p a i r c o s t s a r e f i g u r e d i n t o the r e t a i l f a c t o r y p r i c e so why not take advantage of them. run by equipment inspection Ways to Reduce R e p a i r s The best approach to minimizing r e p a i r s i s to f o l l o w a p r e v e n t a t i v e program of maintenance and c a r e . Change o i l and f i l t e r s , l u b r i c a t e , a d j u s t ments are a l l p a r t of p r e v e n t a t i v e maintenance. Common sense in o p e r a t i o n good o p e r a t o r s who share a sense of p r i d e in doing a j o b w e l l w i l l a l s o see to i t t h a t t h e i r equipment i s running p r o p e r l y ; i f i t i s n o t , they w i l l be quick to check i t out w i t h the mechanic o r s u p e r i n t e n d e n t . Good o p e r a t o r s w i l l not abuse the equipment - they w i l l e x e r c i s e c a r e in t r a n s p o r t i n g , u s i n g , c a r i n g f o r ( c l e a n i n g , e t c . ) and s t o r i n g a l l equipment. In s t o r i n g equipment c a r e should be e x e r c i s e d to insure i t i s not wrecked, abused o r ruined in any way. Good storage technique again means a b i d i n g by the r u l e s s e t down in the equipment manual - i t w i l l save you many d o l l a r s in r e p a i r b i l l s . One common e r r o r c i t e d by a salesman of s p r a y e r s i s t h a t the l i d i s c l o s e d t i g h t w h i l e the sprayer s i t s exposed in the hot summer sun. i t corrodes the i n s i d e s and causes a host of o t h e r problems. Many s p r a y e r s have been junked long b e f o r e they should have been had good a i r c i r c u l a t i o n been provided during s t o r a g e . When buying equipment, t r y to buy heavy duty types where p o s s i b l e they w i l l l a s t longer and g i v e b e t t e r performance in the long run, i . e . , double-edged bedknives, tungsten-carbide t i p s f o r a e r a t o r t i n e s , e t c . L i g h t e r u n i t s such as r o t a r y mowers and o t h e r equipment considered expendable a f t e r a y e a r o r so of use can be bought f o r the best p r i c e o f f e r e d « We see a l l kinds of r o t a r y u n i t s in our t r a v e l s around g o l f courses which i s t e s t i mony to t h i s t h e s i s . Ways to Reduce Purchase Cost (1) When buying new equipment, t r y to buy in b u l k , i . e . , one l a r g e o r d e r has a b e t t e r chance of being discounted than s e v e r a l small ones. (2) Put one manufacturer a g a i n s t another. Toro v s . Jacobsen can be an i n t e r e s t i n g b a t t l e and can p o s s i b l y get some concessions on p r i c e s . (3) Pay in cash. (4) Trade-in. D o n ' t f o r g e t the hundred d o l l a r s allowed f o r something in s a v i n g s . This and o b s o l e t e equipment t h a t shop. T r y to get something (5) Lease equipment. W i t h l e a s i n g t h e r e i s no i n i t i a l purchase c o s t , but r a t h e r a s i n g l e monthly payment. Study could be given to the tax advantages in t h i s method, e s p e c i a l l y where a club has l i t t l e working c a p i t a l . Some of these plans run on a 12, 18, 2k o r 38 month l e a s e . Some are open-ended where the equipment goes back to the l e a s e r a f t e r the p e r i o d of l e a s e i s up, whereas o t h e r l e a s e plans a t the end of payment p e r i o d , the equipment becomes the p r o p e r t y o f the l e a s e e . There could be some advantages h e r e . Most d i s t r i b u t o r s g i v e cash d i s c o u n t s . al1-important t r a d e - i n s . Even a few o l d or used p i e c e s of equipment can mean is a l s o a good way of c l e a n i n g out o l d would o t h e r w i s e be c l u t t e r i n g up the for i t . In c o n j u n c t i o n w i t h t h i s , short-term l e a s i n g could a l s o save you some money, e s p e c i a l l y on seldom-used p i e c e s of equipment l i k e r o t o t i l l e r s , trenc h e r s , o r even s e e d e r s . I t could be w o r t h w h i l e looking i n t o the i n v e n t o r y of l o c a l r e n t - a l l companies. They could s u r p r i s e you. (6) I f money i s t i g h t , look to your d i s t r i b u t o r or other g o l f courses o f f e r i n g used or r e c o n d i t i o n e d equipment f o r s a l e . Some real b a r g a i n s are a v a i l a b l e through t h i s , but e s p e c i a l l y where a new s u p e r i n t e n d e n t comes i n t o a club and, s a y , i s a Jacobsen man and r e p l a c e s a l l the Toro equipment, o r v i c e v e r s a . Some s l i g h t l y used equipment can be had a t r e a l bargain p r i c e s by t h i s method. (7) Check i n t o the d i s t r i b u t o r ' s demonstrator models. I f covered by the o r i g i n a l w a r r a n t y , even though used, nothing can be l o s t and some d o l l a r s can c e r t a i n l y be saved. (8) On some small purchase l i k e r o t a r y mowers, c h a i n saws, r o t o t i l l e r s , o r even small garden t r a c t o r s , perhaps the p r i c e of l o c a l discount s t o r e s could be compared w i t h t h a t of the d i s t r i b u t o r . A small hand r o t a r y mower i s a small hand r o t a r y mower, so i f some money can be saved by purchasing i t a t a d i s c o u n t o u t l e t , then why not do i t . EFFICSENT LABOR MANAGEMENT Richard E. Valentine Superintendent Merion Country Club Ardmo r e , Pennsylvan î a F i r s t o f f , l e t me make t h i s p e r f e c t l y c l e a r . . . w h a t I am about to say r e l a t e s to the Labor Management Program as I have experienced i t in o v e r 20 y e a r s of employment a t the Merion Golf Club. I wi11 not attempt to suggest to you what you should do a t your own g o l f c o u r s e . I w i l l t e l l you how we o p e r a t e a t Merion, (a n o n - p r o f i t p r i v a t e g o l f c l u b ) . E v e r y g o l f course i s d i f f e r e n t . Every g o l f e r ' s needs and demands are d i f f e r e n t . Consequently, e v e r y g o l f maintenance program v a r i e s somewhat. B e f o r e attempting to d e s c r i b e a thorough , e f f i c i e n t Labor Management Program, l e t me f i r s t e x p l a i n what kind of labor f o r c e 1 have a t Merion: My Labor Force c o n s i s t s o f men t h a t have been employed by Merion from one y e a r to f i f t y y e a r s . S i x o r seven men a r e f u l l time ( y e a r round) w h i l e some work 7-8 months each y e a r . Others are p a r t time. (Summer help i n c l u d e d ) . T h e i r ages v a r y from teenagers to e i g h t y y e a r s . As long as a man can produce a f a i r days work, I s h a l l continue to employ him - no matter how o l d he i s . I get j u s t as good and, f r e q u e n t l y , b e t t e r work performances from s t e a d i e r , o l d e r , r e l i a b l e men. This i s what Merion p r o v i d e s the Labor F o r c e : 1. Good Pay S c a l e - b e t t e r than average in a r e a . 2. Cost of l i v i n g and pay i n c r e a s e s 3. Bonuses - Christmas time. A. Blue Cross & S h i e l d Program. 5. 6. E x c e l l e n t v a c a t i o n program. New pension p l a n . yearly. I l i s t these employee p r o v i s i o n s because 1 t h i n k i t i s important to have these i f a Labor Force is to be r e s p o n s i b l e and e f f i c i e n t . B e f o r e the G o l f Course Superintendent can attempt to be an e f f i c i e n t , e f f e c t i v e l a b o r manager, he should f u l l y understand e v e r y phase of work under h i s charge. He should study and l e a r n as much as he can about e v e r y duty performed on the g o l f course. At t h i s time o f the y e a r and e s p e c i a l l y w h i l e a t t e n d i n g t u r f conferences such as t h i s - my mind r e f l e c t s back to t h i s past y e a r ' s course maintenance performances and I r e a l i z e how I would have d e l e g a t e d assignments d i f f e r e n t l y , b e t t e r u t i l i z e d equipment and a p p l i e d m a t e r i a l s d i f f e r e n t l y in v a r y i n g proportion. H i n d s i g h t i s e x p e r i e n c e and i s i n v a l u a b l e . I f e e l t h a t I can do and have done most of the d a i l y tasks on the c o u r s e . Upon t h i s b a s i s , I am ready to d e l i v e r assignments to o t h e r s , knowing what performance to expect and how much time i t takes to complete any j o b . Through o b s e r v a t i o n on how each man performs h i s d u t y , I make job s e l e c t i o n s , p l a c e the r i g h t man in the b e s t p o s s i b l e s i t u a t i o n . t r y i n g to Merion G o l f Club Green S t a f f 1. - Superintendent a. b. c. d. e. f. g. Should have an understanding o f a l l phases of course maintenance procedures and I l i s t j u s t a few - not n e c e s s a r i l y in o r d e r of importance: Agronomist, E n t o m o l o g i s t , N e m a t o l o g i s t , Mechanical and e l e c t r i c a l . A d m i n i s t r a t i v e - p u r c h a s i n g , budgeting, I r r i g a t i o n & drainage. Landscaping. Public relations. Construction. etc., etc., etc., 2. A s s i s t a n t Super- etc. etc. etc. Should be w i l l i n g to assume a l l o f the superi n d e n t ' s r e s p o n s i b i l i t i e s and be w i l l i n g to t a c k l e any j o b . intendent Shop Foreman The mechanic a t Merion i s p r e s e n t l y one of the best around. He understand h y d r a l i c s , d i e s e l , e t c . and i s i n v a l u a b l e . He keeps me o p e r a b l e and d o e s n ' t work on the c o u r s e . He i s too busy s e r v i c i n g equipment f o r both c o u r s e s . 4. Foreman - E a s t T h i s man i s a hard-working j a c k - o f - a l 1 - t r a d e s . He can weave w i c k e r s , climb t r e e s , b u i l d w a l l s , etc., etc., etc. He i s t r u l y a m a s t e r f u l course renovation and c o n s t r u c t i o n man. 5. Foreman - West Old timer in h i s 50th y e a r a t Club. Sets course up d a i l y . Understands the e n t i r e operation. Doubles as d r i v e r and plumber. 6. Drivers (2) Do a l l l a r g e range u n i t mowing. Understand mower adjustments. Older men t h a t can go on and on and on — I hope. These 2 men double as a p p l i c a t o r s and understand techniques in applying m a t e r i a l s . S e c t i o n a l Equipment Operators {k) Mow d a i l y . Operate a l l mowing-renovation equipment, e t c . Power spray and power rake as wel1. Common Laborers Hand rake - weed t r a p s . S c y t h e around bunkers. P i c k up d e b r i s , e t c . , e t c . , e t c . 8. (2) Groundsmen (summertime) 3-4 ( t u r f students when a v a i l a b l e ) Do e v e r y j o b imaginable. I f t u r f students then I can u s u a l l y make out w i t h 3. 10. I r r i g a t i o n Man - West Course (summer) Evenings and e a r l y morning. p a r t time w o r k e r . 11. Club House Gardener p a r t time ( I n d u s t r y r e t i r e d man) - works 3 days a week. Excellent situation. Conscientious and neat. 12. C a r t Man - West Course Guard, Gardener a l l in one Retired chauffeur. E x c e l l e n t worker. to work and g i v e s e r v i c e . 9. W i t h a s t a f f such as I have l i s t e d , to be s e l f s u f f i c i e n t . it Sometimes use Loves i s easy to see how Merion i s a b l e We o p e r a t e as a d o - i t - y o u r s e l f c l u b . T h i s i s n ' t new - we have always operated as our own c o n s t r u c t i o n and maintenance team and, h o p e f u l l y , w i l l continue to do so in the f u t u r e . A l l of t h i s makes f o r p l e a s a n t , to e f f e c t i v e management. i n t e r e s t i n g working c o n d i t i o n s , leading WAYS TO SURVIVE IN 1975 John R. Hal 1 Assistant Professor U n i v e r s i t y o f Maryland There can be no doubt t h a t we a r e l i v i n g in a very f a s t changing w o r l d . As we read the d a i l y newspapers and l i s t e n and watch radio and t e l e v i s i o n newsc a s t s we are c o n s t a n t l y aware t h a t events are o c c u r r i n g a t an a s t o n i s h i n g pace. The t u r f g r a s s i n d u s t r y is changing at the same r a t e as the r e s t of the business world. The rapid i n c r e a s e in M a r y l a n d ' s p o p u l a t i o n from 3.1 m i l l i o n in I960 to 3.9 m i l l i o n in 1970 provides adequate evidence t h a t we are l i v i n g in one of the most r a p i d l y growing areas in the U n i t e d S t a t e s . The number of home lawns in Maryland i s estimated to have increased 74% in that ten year p e r i o d . Homeowners in Maryland were spending an estimated 42.2 m i l l i o n d o l l a r s a n n u a l l y to m a i n t a i n lawns in 1971. During t h a t same ten y e a r p e r i o d the number of g o l f f a c i l i t i e s in Maryland increased from 93 to 164. I t was estimated in 1972 t h a t more than 80 m i l l i o n d o l l a r s was being spent by the t u r f g r a s s i n d u s t r y to maintain t u r f in Maryland. (1) There can be no doubt t h a t t u r f g r a s s in Maryland i s b i g b u s i n e s s . Few people are aware of the r e a l economic impact of the t u r f g r a s s i n d u s t r y upon the S t a t e of Maryland, however, the more p r o g r e s s i v e a s s o c i a t i o n s are making e v e r y e f f o r t to b r i n g t h i s f a c t to the a t t e n t i o n o f the people of the s t a t e . In t h i s rapid moving world the s u p e r i n t e n d e n t ' s job r e s p o n s i b i l i t i e s have not remained stagnant. Todays p r o g r e s s i v e superintendent has to be a q u a l i f i e d agronomist, e n t o m o l o g i s t , n e m a t o l o g i s t , p a t h o l o g i s t , 1abor management s p e c i a l i s t , business manager, purchasing agent, accountant and almost a lawyer to keep abreast of c u r r e n t Environmental P r o t e c t i o n Agency (EPA) and Occupational S a f e t y and H e a l t h A d m i n i s t r a t i o n (OSHA) d i r e c t i v e s . T o d a y ' s superintendent needs to s t a y on top to s u r v i v e . U n l i k e M spoon f e d " e x e c u t i v e s in b i g b u s i n e s s , the superintendent must persona 11ycfesign and implement h i s e d u c a t i o n a l programs. He must seek the e d u c a t i o n a l information t h a t he needs. What sources of information are a v a i l a b l e to the p r o g r e s s i v e superintendent? E v e r y superintendent must r e l y h e a v i l y on the v a s t volume o f t u r f g r a s s management information t h a t e x i s t s in the minds o f the 300 o r more superintendents in the M i d - A t l a n t i c Region. The v a l u a b l e p r a c t i c a l experience which serves to make up the ART of t u r f g r a s s management i s w i t h i n the minds of the experienced superintendents in the Mid A t l a n t i c A s s o c i a t i o n of Golf Course S u p e r i n t e n d e n t s . The exchange of information between peers is e s s e n t i a l to the maintenance of a v i a b l e and f u n c t i o n i n g body of knowledge on t u r f g r a s s management. S e v e r a l t u r f courses are o f f e r e d by the U n i v e r s i t y of Maryland and V i r g i n i a P o l y t e c h n i c I n s t i t u t e and S t a t e U n i v e r s i t y . A four year program in Turf and Urban Agronomy i s a v a i l a b l e in the Department of Agronomy at the U n i v e r s i t y of Maryland. T h i s program leads to a B a c h e l o r of S c i e n c e Degree. The I n s t i t u t e of A p p l i e d A g r i c u l t u r e o f f e r s a two year t e c h n i c a l degree and in depth t r a i n i n g in T u r f g r a s s Management preparing students to become Golf Course S u p e r i n t e n d e n t s . Every s p r i n g the U n i v e r s i t y C o l l e g e D i v i s i o n of the U n i v e r s i t y o f Maryland o f f e r s an advanced course in t u r f g r a s s management, Agronomy 405, during the evening as a p a r t of t h e i r c o n t i n u i n g education program. The C o o p e r a t i v e E x t e n s i o n S e r v i c e i s designed to s e r v e the s u p e r i n t e n d e n t ' s e d u c a t i o n a l needs. I t o r g a n i z e s F i e l d Days, e d u c a t i o n a l conferences and S h o r t Courses to keep you aware of changes in t u r f g r a s s management. There a r e s e v e r a l e d u c a t i o n a l pamphlets and p u b l i c a t i o n s a v a i l a b l e which a r e designed to communicate knowledge to the Golf Course S u p e r i n t e n d e n t . The E x t e n s i o n S e r v i c e continues to be a v a i l a b l e to p r o v i d e i n p u t , when asked, t h a t i s h e l p f u l in keeping A s s o c i a t i o n s v i a b l e and a c t i v e . A s s o c i a t i o n s a r e e s s e n t i a l to the e d u c a t i o n a l process because they provide an important means o f t r a n s m i t t i n g and accumulating knowledge. The p r o g r e s s i v e superintendent remains a g g r e s s i v e in c o n s t a n t l y pursuing research information as i t becomes a v a i l a b l e . E x t e n s i v e research programs a r e underway a t s e v e r a l o f the U n i v e r s i t i e s in the N o r t h e a s t . These programs c o n t i n u o u s l y p r o v i d e v i t a l information to superintendents about new v a r i e t i e s , f e r t i l i z e r s , p e s t i c i d e s and management techniques. I t i s the j o b o f the p r o g r e s s i v e superintendent to make Research and Extension work f o r him. T h i s means d e s i g n i n g e d u c a t i o n a l programs which are r e l e v a n t and valuable. I t means communicating your i n d i v i d u a l needs through your a s s o c i a t i o n to U n i v e r s i t y p e r s o n n e l , l e g i s l a t o r s and a d m i n i s t r a t o r s . I t i s your mind t h a t i s at stake. Strong research and e d u c a t i o n a l programs can make o r break your f u t u r e . I t i s e s s e n t i a l t h a t p r o g r e s s i v e s u p e r i n t e n d e n t s work f o r t h e i r a s s o c i a t i o n and keep i t a c t i v e and v i a b l e . I t i s e s s e n t i a l t h a t the A s s o c i a t i o n s work f o r t h e i r membership and p r o v i d e meaningful e d u c a t i o n a l programs. Continuing education i s your 1 i f e blood. Reference 1. Importance to Maryland Economy, H a l l , John R. 1972. T u r f g r a s s Maintenance: The Agronomist, U n i v e r s i t y of Maryland, V o l . 9 No. 12.