EVALUATION OF CURRENT AND POTENTIAL INSECTICIDES FOR STINK BUG CONTROL IN COTTON
Applied Research
Rusty Harris
SYLVESTER
Abstract
\r\n Stink bug is an annual pest of cotton which cause nearly 2% yield loss statewide annually with economic reduction being approximately $15 million. Field studies were conducted in Irwin County, Ga and Worth County, Ga from 2006 through 2010 to evaluate efficacy of novel, new insecticides against stink bugs in cotton.. Plots were arranged in a randomized complete block design and sprayed using an articulated four row plot sprayer with flat fan spray tips calibrated to apply 15 GPA. Plots were located beside peanut fields to provide a uniform distribution of insect pressure to all plots. Plots were sprayed at two week intervals beginning at three weeks after bloom. Insect counts were made using drop cloths between the inside two rows of plots. Counts were made at three days and seven days after spraying. Insecticide treatments included various pyrethroid, organophospahte, and neonicotinoid products applied alone and in combination. Results indicated that all classes of insecticide had varying degrees of efficacy against green, brown, and quadrator stink bug. These studies indicate that many novel new insecticides provide efficacy against stink bug species found in the Southeastern United States. Brown stink bug proved to be the most difficult to control, and pyrethroid insecticides did not perform well against this species when applied alone. These results indicate there is potential for large economic return by using novel new products in combination with a scouting program to control stink bug in cotton.
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Poster has NOT been presented at any previous NACAA AM/PIC
This poster is being submitted for judging. It will be displayed at the AM/PIC if not selected as a State winner. The abstract will be published in the proceedings.
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Authors: R.P. Edwards, C.T. Tyson, P.M. Roberts, H.M. Harris
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Edwards, R. Irwin County Extension Coordinator, University of Georgia, Georgia, 31774
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Tyson, C. County Extension Agent, University of Georgia, Georgia, 31791
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Roberts, P. Extension Entomologist, University of Georgia, Georgia, 31781
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Harris, H. Worth County Extension Coordinator, University of Georgia, Georgia, 31797