Golf Course Management

MAR 2017

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

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70 GOLF COURSE MANAGEMENT 03.17 regions where n > 20, which tended to be by state, or were further subdivided where there were enough responses and it made geograph - ical sense (that is, eastern vs. western Penn- sylvania, and Long Island vs. upstate New York). Delaware and Maryland had very few responses and were combined with Virginia. The western (Ohio, West Virginia) and north - ern peripheral states and provinces (Maine, New Hampshire, Vermont, Ontario, Quebec) were the only regions included in the analy - ses that had fewer than 20 responses. In total, eight distinct regions and four subregions are represented in the descriptive statistics. Local and regional annual bluegrass weevil damage Only surveys that indicated annual blue - grass weevil was a pest (90%) were used in re- porting damage incidence to select turf areas. To better understand the average extent of damage across a site and to best gauge the total amount of turf that requires insecticide treat - ment, we asked superintendents to determine Region/subregion Responses Total no. facilities (% surveyed) Northern Periphery (Maine, New Hampshire, Vermont, Ontario, Quebec) 13 1,506 (0.9) Massachusetts 33 370 (8.9) Connecticut 25 174 (14.4) New York 56 799 (7.0) Long Island 20 Upstate New York 26 New Jersey 32 285 (11.2) Pennsylvania 74 661 (11.2) Eastern Pennsylvania 30 Western Pennsylvania 38 Delaware-Maryland-Virginia 42 541 (7.4) Western Periphery (Ohio, West Virginia) 16 804 (2.0) Table 1. Regions and subregions used for categorizing survey data for Listronotus maculicollis geographically, number of completed surveys by region, and total golf facilities in the region (percent surveyed). Number of responses and golf facilities by region and subregion Annual bluegrass weevil damage by season and by location on golf course Region/subregion % damage by season Location of damage (%) † No. damaged ‡ % w/o damage § Height of cut // Spring Summer Fall All G T C/A FW R G/C T FW All regions 38 84 14 5 26 34 58 69 10 6.4 5.7 6.6 14 0.119 (3.02) Northern Periphery 8 77 0 0 38 31 69 54 8 5.0 4.7 4.9 15 0.126 (3.20) Massachusetts 21 82 12 0 20 30 57 57 3 6.6 5.0 6.0 9 0.119 (3.02) Connecticut 52 88 20 8 40 64 96 68 8 7.4 4.7 5.1 0 0.123 (3.12) New York 43 88 9 2 16 38 54 70 9 5.9 6.4 7.7 11 0.118 (3.00) Long Island 40 90 15 5 10 45 55 65 5 6.3 7.7 9.1 5 0.111 (2.82) Upstate New York 46 85 0 0 19 23 58 69 12 4.9 6.6 6.3 19 0.123 (3.12) New Jersey 47 75 31 22 31 22 63 66 3 7.4 5.0 6.7 6 0.120 (3.05) Pennsylvania 39 70 11 1 20 36 55 64 12 6.3 6.6 7.5 8 0.111 (2.82) Eastern Pennsylvania 50 66 11 3 21 37 55 47 5 6.6 6.2 7.4 8 0.118 (3.00) Western Pennsylvania 21 58 8 0 16 26 42 55 13 5.6 8.2 7.4 13 0.109 (2.77) Delaware-Maryland- Virginia 14 52 14 0 20 17 23 31 9 6.8 4.0 4.4 48 0.124 (3.15) Virginia 11 44 19 0 21 11 26 26 16 6.4 2.0 3.3 59 0.125 (3.18) Western Periphery 5 11 0 0 5 4 9 4 1 3.1 1.3 1.7 19 0.121 (3.07) † G = greens, T = tees, C/A = collar/approaches, FW = fairways, R = roughs. ‡ G/C = Greens/collars, T = Tee, FW = Fairway. Transformed to an 18-hole equivalent; no responses removed from statistics. § Percentage of respondents who did not report damage to any area // Average putting green height-of-cut in inches (mm) Table 2. Listronotus maculicollis (annual bluegrass weevil) damage to turfgrass by location on golf course and by season.

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