Effects of Pyrethroid Insecticides on the Common Green Lacewing12
- 1 April 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 73 (2) , 306-309
- https://doi.org/10.1093/jee/73.2.306
Abstract
Third instars of Chrysopa carnea Stephens can tolerate a wide range of doses of fenvalerate (cyano (3-phenoxyphenyl) methyl 4-chloro-a-(1-methylethyl) benzeneacetate), permethrin (3-phenoxyphenyl) methyl (cis, trans-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate), cis- and trans-permethrin. Larvae exhibited marked tolerance to all pyrethroids over a 72 h period when dosed topically with 250 µg insecticide/insect. Larval survivorship, adult emergence, and fecundity were unaffected by permethrin but not by fenvalerate at the 1000 µg/g level through one generation (larva to larva); female longevity, however, was decreased by permethrin. The ED50 value (paralysis, failure to pupate, knockdown, and mortality) for fenvalerate was ca. 1000 µg/g whereas ED50 values for the other compounds could not be determined but would be greater than 25,000 µg/g.This publication has 1 reference indexed in Scilit:
- Comparative Efficacy of Four Insect Predators of the Bollworm and Tobacco Budworm 1 , 2Environmental Entomology, 1976