J. W. Haynes
Jun 1, 1987
Citations
0
Influential Citations
1
Citations
Quality indicators
Journal
Journal of Economic Entomology
Abstract
In the laboratory, four substituted benzamides (LY 121342 benzamide, 2-chloro- N -[[[6-[2,4-dichlorophenyl]methoxy]-3-pyridinyl]amino]carbonyl]-6-fluoro-; LY 135926 benzamide, N -[[[6-[2,4-dichlorophenylmethoxy]-3-pyridinyl]amino]carbonyl]-; triflumuron; and CGA 112913, N -[4-(3-chloro-5-trifluoromethyl-2-pyridinyl-oxy)-3,5-dichlorophenyl-aminocarbonyl]-2,6-difluoro-benzamide) were administered to adult boll weevils, Anthonomus grandis grandis Boheman, by dipping at concentrations ranging from 0.032 to 2.5% and feeding (3 d) at concentrations ranging from 0.25 to 2.0%. In dipping tests, descending order of effectiveness of these compounds in causing progeny reduction was as follows: LY 135926, triflumuron, LY 121342, and CGA 112913. In feeding tests, descending order of effectiveness was as follows: CGA 112913, LY 121342, triflumuron, and LY 135926. Mortality was higher in dip and feeding tests with LY 121342 and LY 135926. Although all treatments reduced flight compared with the control, boll weevils that were fed these chemicals (except LY 121342) usually flew more than those that were dipped. A few days after treatment, flight of treated and controls was reduced compared with earlier flights.