Tobacco Budworm: Penetration of Several Insecticides into the Larva123
- 1 February 1973
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 66 (1) , 9-15
- https://doi.org/10.1093/jee/66.1.9
Abstract
The rate of penetration of four 14C-labeled insecticides into the cuticle and internal tissues of larvae of 2 strains of Heliothis virescens (F.), was measured at specific times after topical application. One strain was resistant to methyl parathion and other organophosphates; the second was Susceptible. The insecticides were DDT, endrin, carharyl, and malathion. All the insecticides penetrated more rapidly and reached higher concentrations in internal tissues of larvae of the susceptible strain. Differences between strains in rate of penetration were largest with malathion and DDT. With both strains the penetration rate from fastest to slowest was in order carbaryl > malathion > cndrin > DDT.Keywords
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