Full TGIF Record # 19380
Item 1 of 1
Publication Type:
i
Report
Author(s):Clark, John D.; Haynes, Kenneth F.
Title:Studies of a sex attractant for the bluegrass webworm
Source:Kentucky Turfgrass Research. 1988, p. 42.
Publishing Information:Lexington, KY: University of Kentucky, College of Agriculture, Cooperative Extension Service
Series:Progress Report 319
Keywords:TIC Keywords: Parapediasia teterrella; Poa pratensis; Biological control; Crambinae; Attractants; Lawn turf
Abstract/Contents:An effective means of monitoring population densities of the bluegrass webworm and other insects that attack turf could lead to a reduction in insecticide use or more effective timing of current applications. The objective of this study was to develop a synthetic sex attractant that could be used for monitoring the time of occurrence and abundance of the bluegrass webworm. Field studies were conducted in Lexington, Kentucky at two residential lawns established with Kentucky bluegrass turf. Experiments testing chemical compounds for attraction male bluegrass webworm moths were run between June 1988 and September 1988. Each single component or blend of (Z)-11-hexadecenal (Z11-16:Ald) and (Z)-9-hexadecenal (Z9-16:Ald) was added to rubber septa. The rubber septa were then placed in Pherocon 1C traps spaced at least 6 m apart, and 15 to 30 cm above the turf. Trap positions were randomized daily and trap captures of adult males for each compound tested were analyzed using analysis of variance. Field tests showed that various blends of Z9-16:Ald and Z11-16:Ald attracted male bluegrass webworm moths. A blend ratio of 95:5 Z11/Z9-16:Ald captured the greatest number of males. Up to 82 moths were caught in a single trap during one night. Studies testing concentrations between 0.1 mg and 3.0 mg active ingredient showed that males responded to a wide range of doses. Sex attractants for the bluegrass webworm and other sod webworm species could be useful tools for the turfgrass manager. With these tools, insecticide applications can either be eliminated or more precisely targeted at controlling turfgrass pests. Future studies will focus on the identification of sex attractants for other species in the sod webworm complex.
Language:English
References:0
Geographic Terms:Kentucky
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Clark, J. D., and K. F. Haynes. 1988. Studies of a sex attractant for the bluegrass webworm. KY. Turfgrass Res. p. 42.
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