Resistance to Some Chlorinated Hydrocarbon Insecticides in the Boll worm, Heliothis zea1

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A four-year study of the toxicological response of boll worm larvae, Heliothis zea (Boddie), to DDT and endrin indicates that high levels of resistance to these chemicals have now developed in some areas of Louisiana. However, there were no indications of resistance to a toxaphene-DDT mixture.

Document Type: Research Article

Publication date: August 1, 1963

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