SUMMARY OF STINK BUG EFFICACY TRIALS (2005-2011) IN IRWIN COUNTY, GEORGIA
Applied Research
Phillip Edwards
County Extension Coordinator
University of Georgia
Ocilla
Abstract
\r\n Stink bugs are a primary insect pest of Georgia cotton. Stink bug populations vary by year, but since the transition to transgenic Bt cotton their presence has negatively impacted cotton yield and grade. Each year from 2005 - 2011 numerous insecticides have been evaluated in Irwin County GA to determine their effectiveness in controlling stink bugs in cotton. Trials were conducted in commercial cotton fields. Plots were arranged so that each plot bordered peanuts since stink bug populations are traditionally higher in cotton nearest the peanut planting compared with more interior areas of fields. A high clearance plot sprayer was used to apply various insecticides on the four rows adjacent to the peanut planting. Stink bugs were counted by life stage and species 3 days after treatment. Pyrethriods, pyrethroid/neonic premix and OPs provided good to excellent control of southern green stink bugs. However, organophosphates such as Bidrin provided improved control of brown stink bug species.
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Authors: R.P. Edwards, P.M. Roberts
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Edwards, R. County Extension Coordinator, UGA Cooperative Extension, Irwin County, Georgia, 31774
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Roberts, P. Professor and Extension Entomologist, Deptartment of Entomology - University of Georgia, Georgia, 31793