Vol. I I, No. 18 Published monthly by the Metropolitan Golf Course Superintendents Association MEETING NOTICE General Business Meeting Date: February 22nd Place: Teddy’s Steak House Central Avenue, Scarsdale Time: 12:30 Luncheon and meeting Coming Events: January 7-12 GCSAA Conference and Show Boston, Mass. January 17-19 Golf and Fine Turf Conference Rutgers University (Ramada Inn) January 26 USGA Green Section Conference Biltmore Hotel, N.Y. Membership Committee— The following members have been approved by the executive board. John L. Hunt Class A Spook Rock G. C. Joseph Alonzi Class B Burning Tree C.C. Voting Delegate for the Metropolitan Golf Course Superintendents Association is Ron Boydston. A Caucus will be called at the National Conference in Boston, probably on Tuesday. At the annual meeting the election results are as follows: Harry Nichol President Garry Crothers 1st Vice President Edward Horton 2nd Vice President Richard Allen Secretary Robert Alonzi Treasurer Anthony Altamaro Sergeant at Arms Robert Bruce Board of Directors: Ron Boydston John Traynor President Harry Nichol has made the following appoint­ ments for Committee Chairmen for 1973. Internal Affairs Program Welfare Golf Christmas Party External Affairs Tee to Green and Communications Field Day Scholarship and Research Publicity 1st V. P. Garry Crothers Garry Crothers Gus Powell Robert Bruce Everett Wood 2nd V. P. Edward Horton Edward Horton Allan Tretara Ron Boydston John Sundholm January, 1973 MGCSA News: Hats off to John Sundholm and Committee for a wonderful Christmas Party. Everything went very smoothly. Ted Horton, of course, won two door prizes. Joe Camberato had some beautiful decorations throughout the beautiful old club house, including a big spruce Christmas tree. The ladies admired the many antiques in the clubhouse. They certainly don’t build clubhouses like that today. At the annual meeting it was voted by the membership t( donate $500. to Rutgers for the bent grass research project Thanks again to Anthony Unbanowicz for obtaining Lake Isl* C. C. for the annual meeting. Magovern Company has finally made the move t< Westchester and now are located on MacDonald Avenue ii Armonk, next to Armonk Lumber Co. It looks like a repeat performance of old man weather fo: this winter, just like last year, mild and wet. We certainly wisl we could pipe about 20” of excess rain to drier parts of th< USA. Those that attended the recent GCSAA Management Seminar really expressed great satisfaction in the first GCSAA Seminar. We only hope there will be many more to come as the first one certainly gave some closer insight to a club’s overall operation, especially in regard to financial statements. There were also some excellent group discussions regarding various; simulated problems. Since the group was from the whole Northeast, you certainly could see the different view points come into play. Metropolitan, Connecticut, New Jersey and Long Island were all well represented. The USGA Green Section Record has an excellent article by Dr. James Beard of Michigan State University, Ten Years o f Research on Winter Injury on Golf Courses: Causes and Prevention which we have printed in this issue of Tee to Green, Winged Foot Golf Club had a fire which destroyed the new dining addition put on just a few years ago. Everybody was evacuated in time from the rooms above which was fortunate since it started between 6 and 7 AM. All three Presidents from adjoining associations are also members of Metropolitan for 1973 — Skip Cameron, New Jersey; Mel Lucas, Jr., Long Island; and Jerry Scafa, Hudson Valley. This should mean better and more communication and hopefully we can eliminate conflicting meeting dates. Position Wanted: Assistant Golf Course Superintendent Michael T. Hess Hawley, PA Hemlock Farms Phone: (717) 775-6215 Graduates from Penn State’s 2 year Turf Management course, March 15, 1973 Resume available from Tee to Green Editor Rome, NY 13440 Mr. Larry Ehlinges Phone: (315) 337-1238 6747 Williams Road Editorial Staff Garry Crothers Pat Lucas A1 Tretera Co-Editor Co-Editor Advertising Manager OFFICERS President: First Vice President: Second Vice President: Secretary: Treasurer: Sergeant at Arms: Harry H. Nichol, Elmwood C.C. Office 914-592-6608, Home 914-472-0174 Garry N. Crothers, Apawamis Club Office 914-967-2100, Home 914-234-3770 Edward C. Horton, Winged Foot Golf Club Office 914-698-2827, Home 914-937-3613 Richard Allen, Sunningdale C.C. Office 914-723-3200, Home 914-723-8097 Robert Alonzi, Burning Tree C.C. Office 203-869-5779, Home 914-937-1527 Anthony Altamaro, Greenwich C.C. Office 203-869-1000, Home 203-661-7019 BOARD OF DIRECTORS Office 914-472-1467 Home 914-241-2169 Office 914-631-4560 John Sundholm, Green Rock Corp. Home 914-631-4458 Office 203-869-2350 Gus Powell, Round Hill Club, Inc. Home 203-531-5826 Office 914-669-5959 Robert Bruce, Salem Golf Club Home 914-669-5012 Office 914-359-5346 Ron Boydston, Rockland C.C. Home 914-359-2910 Office 516-295-2500 John Traynor, Woodmere C.C. Home 516-295-3855 Past President: Everett Wood, Scarsdale C.C. Office 914-723-2840 Allan Tretera, Fenway Golf Club Not copyrighted. I f there is good here, we want to share it with all chapters - unless author states otherwise. TEN YEARS OF RESEARCH ON WINTER INJU RY ON GOLF CO URSES; CA USES AND PREVENTION By Dr. James B. Beard, Michigan State University Winter injury of turf is difficult to understand because it re­ sults from the interaction of a number of environmental, soil, and cultural factors. Before a golf course superintendent can initiate the appropriate cultural program to prevent winter in­ jury, he must determine the particular type or types of winter in­ jury that occur most frequently at various locations on the golf course. This involves a study of the particular symptoms, in­ cluding time of occurrence, soil type, topography, drainage characteristics, traffic patterns, and the probability of environ­ mental stress. Such information is assembled over a period of years, and a specific program is established on the golf course in order to minimize the probability of winter injury. CAUSES OF WINTER INJURY The four major types of turfgrass winter injury that most commonly occur are presented in Table 1, along with the symptoms and causes of injury. This information has been assembled over a 10-year period of extensive research at Michigan State University. The major types of winter injury are: Desiccation Direct low temperature kill Low temperature diseases Traffic effects. Note that ice sheet damage caused by oxygen suffocation or toxic gas accumulations underneath an ice cover are not listed. Detailed investigations at Michigan State University indicate that this type of winter injury rarely occurs. This is in contrast to the many articles by individuals indicating that this is a serious problem. Unfortunately, these earlier writers had essentially no information on which to base their comments other than data from research with alfalfa. The winter injury most commonly associated with extended periods of ice coverage occurs during freezing or thawing periods when standing water increases the crown tissue hydration and subsequent injury of the turfgrass plants when temperatures drop rapidly below 20° F. PREVENTING WINTER INJU RY Cultural steps can be taken to minimize the potential for in­ jury in the future once the cause or causes of winter injury on specific turfgrass areas on the golf course have been established. The first prerequisite in minimizing all types of winter injury is a healthy turf with adequate carbohydrate reserves and recuperative potential. This phase of winter injury prevention is accomplished during the normal growing season, particularly in the late summer—early fall period. Practices to prevent or at least minimize the potential for turfgrass winter injury can be divided into cultural practices, soil management, and specific winter protectants. The specific practices utilized in each of these categories are are summarized in Table 2. It should be noted that a number of them apply to more than one type of winter injury. In some cases, the practice that is effective in preventing one type of winter injury will actually increase the probability of damage from another type. For example, snow covers or winter protection covers used to prevent winter desiccation will also maintain temperatures near 32° F which will enhance the probability of snow mold disease activity. This means that when such a practice is in use, steps should also be taken to apply a preventive snow mold fungicide application to the turfgrass area prior to installing the winter protection cover. From a cultural standpoint, the proper control of plant and soil water relations is the most critical factor affecting all phases of turfgrass winter injury. Techniques to adjust the soil-water status must be achieved during the summer period. Finally, it is quite obvious that selection and planting of the appropriate turfgrass species and cultivar can be critical in minimizing the degree of turfgrass injury that may occur. Annual bluegrass is very prone to all types of winter injury. The bentgrasses are considerably less susceptible to injury, and also have a greater recuperative potential from existing vegetative plant parts. IN SUM M ARY: This article gives a brief summary of a great deal of research conducted at Michigan State University over the past 10 years. Portions of it were supported by the U.S.G.A. Green Section Research and Education Fund. THE A U TH O R;D r. James B. Beard is a Professor o f Turfgrass Science in the department o f crop and soil sciences at Michigan State University, East Lansing, Mich. 48823. He has ' conducted pioneering research in all phases o f turfgrass winter injury. In 1971 he was the youngest recipient ever selected to receive the highest honor o f Fellow in the American Society o f Agronomy. He has authored a new textbook entitled I “Turfgrass: Science and Culture” published by Prentice-Hall i o f Englewood Cliffs, N.J. Table 2. Practices available to minimize w inter injury on golf course turf . ly p e o t winter injury A. Practices that minimize injury Turfgrass cultural Specific Soil management M oderate nitrogen n u tri­ tio n a l levels. Do not core in late fa ll and leave the holes open. Turfgrass species most commonly protectants affected Desiccation: (1) Atm osphere E lim in a tio n o f any thatch problem . Conwed W inter P rotection Blanket Annual bluegrass Polyethylene (4-6 m il) Saran Shade C loth (94%) Topdressing (0.4 y d 3/ 1,000 sq. ft.) Windbreaks such as snow fence, brush, or ornam ental tree and shrub plantings. Natural organic mulches. (2) Soil M oderate nitrogen n u tri­ tio n a l levels. (Same as above) (Same as above) Rapid surface drainage by proper contours, open catch basins, and ditches. Conwed W inter P rotection Cover Annual bluegrass Irrig a tio n or hauling o f w ater to critica l turfgrass areas. B. Direct low temperature kill M oderate nitrogen n u tri­ tio n a l levels. High potassium n u tritio n a l levels. Higher cu ttin g heights. E lim in a tio n of any thatch problem . C. Adequate subsurface d ra in ­ age by drain tile , soil m o d i­ fic a tio n w ith coarse te xtu re d m aterials, slit trenches, and d ry wells. Soil R etention Mat Bermudagrass Annual bluegras: Red fescue Enhancing a snow cover w ith snow fence or brush. Natural organic mulches such as straw. Avoidance o f excessive irrig a tio n . C u ltiva tio n , especially coring and slicing, when com paction is a problem . Soil warm ing by e le c tric ity . Moderate nitrogen n u tri­ tional levels. A voiding neutral to alkaline soil pH's Cadmiums Annual bluegras; Benom yl Bentgrass Low temperature diseases: (1) Fusarium patch High potassium and iron n u tritio n a l levels. Daconil Mercuries M oderate to low c u ttin g heights. E lim in a tio n of any thatch problem . (2) Spring dead spot (3) Typhula b lig h t « Nabam, tim e the applica­ tions to be present when soil temperatures are below 5 0 °F and the soil is w ater saturated. Bermudagrass Provide good surface and subsurface drainage. Cadmiums Annual bluegrass Chloroneb Bentgrass C ultivate when com paction is a problem . Mercuries A void excessive w in te r irrig a tio n . Provide good surface and subsurface drainage. E lim in a tio n of any thatch problem . C ultivate when com paction is a problem . Moderate nitrogen n u tri­ tio n a l levels. Moderate to low cu ttin g heights. E lim in a tio n of any thatch problem . (4) W inter crow n ro t D. E lim in a tio n o f any thatch problem . M ercuric chloride (2 applications) A p p ly a lig h t a p p lication o f w ater in early m orning; this is m ost effective when the soil is n o t frozen and the air temperatures are above freezing. W ithhold or divert tra ffic from turfgrass areas during periods when the leaf and stem tissues are frozen. Annual bluegrass Bentgrass Traffic: (1) On frozen turfgrass leaves (2) On w et, slush covered tu rf W ithhold tra ffic on turfgrass areas during w et, slushy con­ ditio n s, especially if a drastic freeze is anticipated. Annual bluegrass Table 1. Types, symptoms, and causes o j w inter injury that most commonly occur on golf course turf Cause of injury Type of winter injury External forces Internal plant effects Desiccation: A. (1) A tm o s p h e ric Leaves tu rn d is tin c tly w h ite b u t rem ain e re ct; occurs m ost c o m m o n ly on h igher lo c a tio n s th a t are m ore exposed to d ry in g w in d s ; can range fro m sm all irre g u la r patches to e x te n ­ sive k ill o f large areas. A d ry in g a tm o sp h e ric e n v iro n m e n t in c lu d in g high w in d s and lo w relative h u m id ity ; in a d d itio n , soil w a te r a b s o rp tio n is reduced at lo w te m p e r­ atures or m ay be in o p e ra tive because th e soil is fro ze n . D e sicca tio n o f th e p la n t causes shrinkage and collapse o f th e p ro to p la sm th a t results in m e­ chanical damage and death. (2) S o il Leaves tu rn d is tin c tly w h ite and are sem i-erect; th e tissues in c lu d in g the c ro w n are ve ry d ry ; c o m m o n ly occurs in a m ore extensive p a tte rn over the t u r f than does a tm o sp h e ric d e sicca tio n. E xte n d e d periods o f soil d ro u g h t due to a d ry in g a tm o sp h e ric e n v iro n m e n t and lack o f p re c ip ita tio n o r irrig a tio n . (Same as above) Leaves in itia lly appear w a ter-soaked, tu rn in g w h itis h -b ro w n and progressing to a d a rk b ro w n ; th e leaves are lim p and tend to lay as a m at over th e soil; a d is tin c t, p u trid o d o r is fre q u e n tly e v id e n t; occurs m ost c o m m o n ly in p o o rly dra in e d areas such as soil de­ pressions; fre q u e n tly appear as large, irre g u la r patches. A rap id decrease in te m p e ra tu re , p a rtic u la rly the adjacent soil te m p e r­ a tu re ; k ill m ost c o m m o n ly occurs at soil te m p e ra tu re s b e lo w 20 F d u rin g the late w in te r —e a rly spring freezing and th a w in g periods; m ay be associated w ith th a w in g o f an ice cover th a t occurs fro m u n d ern e a th. Large ice crystals fo rm w ith in the p la n t tissues causing mechar ical d e s tru c tio n o f th e fro z e n , b r ittle p ro to p la s m ; th e h igher t! w a te r c o n te n t o f th e tissue, the larger th e ice crystals and the m ore severe the k ill. (1) Fusarium patch (p in k snow m o ld ) P in k m y c e liu m on leaves; 1 to 2 in ch , tan, c irc u la r patches; o r w h ite m yce ­ lial mass on leaves, w h ite to p in k c irc u la r patches up to 2 feet in d ia m e te r. Fusarium niva/e; favored by turfgrass te m p e ra tu re s o f 32 to 4 0 ° F and m o ist c o n d itio n s . Parasitic a c tio n . (2) S pring dead spot Appears in th e spring as irre g u la r, c irc u la r dead spots o f up to 3 feet in d ia m e te r; shoots, rhizom e s, stolons, and ro o ts w ith in the spot w ill be k ille d ; a ffe cte d spots c o m m o n ly re­ o ccu r in the same lo c a tio n each year and m ay g ra d u a lly enlarge. Causal organism has n o t been id e n ti­ fie d ; favored by turfgrass te m p e ra tu re s b e lo w 5 0 °F and w e t c o n d itio n s . U nknow n L ig h t gray m y c e liu m on leaves, e specially at the m argins o f the ad-t vancing rin g ; w h itis h -g ra y , slim y , c irc u la r patches o f up to 2 fe e t in d ia m e te r; b ro w n scle rotia are em bedded in th e leaves and crow ns, ranging up to 1 /8 inch in d ia m e te r. Typhu/a i to ana, T. idahoenis, o r T. ishikariensis; favored by turfgrass Parasitic a c tio n . L ig h t gray, m atte d m ycelia l g ro w th m ay be e vid e n t on the leaves; irre g u la r shaped patches in itia lly appear y e llo w and g ra d u a lly d e te rio ra te to a straw c o lo r; in d iv id u a l patches up to 1 fo o t in d ia m e te r m ay coalesce causing damage over a large area. U n id e n tifie d lo w te m p e ra tu re Basidio m ycte ; favored by turfgrass te m ­ (1) On fro z e n turfgrass leaves E re ct, w h ite to lig h t-ta n dead leaves appearing in th e shape o f th e f o o t ­ p rin ts o r wheels w here th e y have been im pressed o n to the t u r f. Pressure o f the tr a ffic (shoes or wheels) on th e rig id , fro ze n tissues; the p ro b le m m ost c o m m o n ly occurs d u rin g the e arly m o rn in g hours. D is ru p tio n o f the fro z e n , b rittle p ro to p la sm th a t has ice crystals su rro u n d in g and e xte n d in g in to (2) On w e t, slush covered tu rfs Leaves in itia lly appear w ater-soaked tu rn in g w h itis h -b ro w n and progressing to a d a rk b ro w n ; th e leaves are lim p and te n d to lay as a m at over th e so il; appears in irre g u la r shapes associated w ith previous p a ttern s o f co n ce ntra te d tr a ffic ; soil r u ttin g m ay also be e vid e n t. S now cover thaw s to a slushy c o n d i­ tio n causing increased h y d ra tio n o f the turfgrass crow ns; tr a ffic , in clu d in g sn o w m o b ile s, fo rce the w e t slush in to in tim a te c o n ta c t w ith the turfgrass crow ns; k ill m ost c o m m o n ly occurs if th is event is fo llo w e d by a decrease in te m p e ra tu re to b e lo w 2 0 °F . N o t c o m p le te ly u n d e rs to o d , bu related to the d ire c t lo w tem pe k ill m echanism . B. Direct low temperature kill C. Low temperature diseases: (3) Typhu/a b lig h t (gray snow m o ld ) (4) W in te r c ro w n ro t D. Symptoms tem p e ra tu re s o f 32 to 4 0 ° F , especially un d er an ice cover o r d u rin g its th a w . peratures o f 28 to 3 2 °F ., especially under a snow cover. In ju ry results fro m h ydrogen cya n id e gas p ro d u ce d by the sap p h y tic fungus; subsequently the fungus invades the host p la n t. Traffic: ? JAN ír /2 vJ^ÄPOSiAG f : .0 8 Richard C. Allen, Secretary 126 Underhill Road Scarsdale, New Y ork 10583 First Class MELVIN 8 LUCAS UR A GARDEN CITY GOLF CLUd 315 STEWART AVE GARDEN CITY NY 11530 METRO MILORGANITE INC. P.O. Box 267 Hawthorne, N.Y. 10532 Tel. (914) 769-7600 Best Wishes for a Prosperous 1973 John and Tony