Golf Course Management

OCT 2018

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

Issue link: http://gcmdigital.gcsaa.org/i/1031201

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10.18 GOLF COURSE MANAGEMENT 69 Kyle Wickings, Ph.D. Management of natural areas and annual bluegrass weevil overwintering Accumulated dead plant residue in natural areas of the golf course may allow annual bluegrass weevils to overwinter successfully, but removing the vegetation may not enhance weevil control. e annual bluegrass weevil (Listronotus maculicollis) remains a major pest of short- mowed turfgrass in the northeastern United States. e difficulties in managing annual bluegrass weevil stem from a number of fac - tors, including their complex biology, cryptic habits and the emergence of pesticide resis - tance (2). Many aspects of annual bluegrass weevil biology remain poorly understood. For instance, little is known about how envi - ronmental traits in overwintering sites influ- ence winter survival. e weevil overwinters as an adult, primarily in tall or thick vegeta - tion, including leaf litter in forested edges and grassy natural areas. ese areas, espe - cially golf course natural areas, often receive distinct management inputs such as herbi - cides, leaf litter movement or removal, mow- ing, selective planting and even burning. Few studies have examined winter biology of an - nual bluegrass weevil (1), and, to our knowl- edge, no studies have assessed the impact of site management practices on the weevil's winter survival. e objective of this project was to quan - tify the impact of different vegetation man- agement practices commonly employed in golf course natural areas on annual blue - grass weevil overwintering. To address the objective, plots were established on two golf courses with known annual bluegrass wee - vil populations: Robert Trent Jones Golf Course, Ithaca, N.Y., and Onondaga Golf This research was funded in part by a grant to GCSAA from the Environmental Institute for Golf. Figure 1. A native area at the Robert Trent Jones Golf Course in Ithaca, Tompkins County, N.Y., was one of the research sites for this project. The plots are being flagged by Martin Ward for vegetation management treatments. Photos by Kyle Wickings

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