Journal of Economic Entomology (1998) 91, 1067-1071

From Pestinfo-Wiki
Jump to: navigation, search

S. Kontsedalov, P.G. Weintraub, A.R. Horowitz and I. Ishaaya (1998)
Effects of insecticides on immature and adult western flower thrips (Thysanoptera : Thripidae) in Israel
Journal of Economic Entomology 91 (5), 1067-1071
Abstract: A bioassay confining Frankliniella occidentalis (Pergande) to insecticide-treated kidney bean leaves in a modified Münger cell was used to test the effects of insecticides on fecundity, feeding activity, and mortality. Adult thrips were exposed to various concentrations of abamectin, carbosulfan, methiocarb, monocrotophos, methamidophos, cypermethrin, and acrinathrin; and immature thrips were exposed to abamectin, carbosulfan, methiocarb, and acrinathrin. Cypermethrin had no direct effect on adult thrips at concentrations up to 2,000 ppm. Carbosulfan had the highest efficacy against adults in terms of suppression of feeding activity and fecundity, and the lowest LC90 (11.3 ppm). Additionally, F. occidentalis were collected from flower greenhouses in 4 locations where growers reported problems controlling their populations; thrips were tested with abamectin, carbosulfan, and methiocarb. At only 1 collection site was there moderate resistance to carbosulfan and methiocarb; moderate resistance to abamectin was observed only in immature thrips from 1 site.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Phyllis G. Weintraub, Abraham Rami Horowitz, Isaac Ishaaya

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Frankliniella occidentalis Beans (Phaseolus) Israel