Dosage-Response Analysis for Methyl Parathion, Methomyl, and Permethrin on the Tobacco Budworm and Bollworm (Lepidoptera: Noctuidae) in Georgia
- 1 December 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 75 (6) , 961-963
- https://doi.org/10.1093/jee/75.6.961
Abstract
Larvae of Heliothis virescens (F.) and H. zea (Boddie) were collected in Georgia from corn, cotton, crimson clover, and tobacco. Evaluation for dosage response showed both species to be much more susceptible to permethrin than methyl parathion or methomyl. H. virescens was more tolerant than H. zea to all three insecticides. Comparison to previous work and a susceptible laboratory strain showed field-collected larvae of H. virescens to have decreased susceptibility to methyl parathion and methomyl. Little differences in LD50. values were obtained from cultures collected from different host plants.This publication has 0 references indexed in Scilit: