Title: Western tent caterpillar: Contact toxicity of ten insecticides applied to the larvae
Author: Robertson, Jacqueline L.; Gillette, Nancy L.
Source: Journal of Economic Entomology. 66(3):629-630
Description: Ten chemicals representative of four insecticide groups (earbamate, organophosphate, chlorinated hydrocarbon, and pyrethroid) were applied topically to mixed groups of 5th- and 6th-stage larvae of Malaeosoma californicum califomicum (Packard). Only 2&emdash;the pyrethroid NIA 24110 ((5-benzyl-3-furyl) methyl trans-( +)-3-(cyclopentylidenemethyl)-2,2-dimethylcyclopropanecarboxylate), and resmethrin-were more toxic than DDT at LD50. Because of the low slope of DDT, however, 8 insecticides exceeded it in toxicity at LD90. These were, in decreasing order of toxicity, NIA 24110, resmethrin, methomyl, pyrethrins, mexicarbate, carbaryl, and malathion.
View and Print this Publication (195.27 KB)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility
Robertson, Jacqueline L.; Gillette, Nancy L. 1973. Western tent caterpillar: Contact toxicity of ten insecticides applied to the larvae. Journal of Economic Entomology. 66(3):629-630.