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Compatibility of Bacillus thuringiensis var. thuringiensis and Chemical Insecticides. 1. Effect of Insecticide Doses on Bacterial Replication Rate 1,2

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Abstract:

Growth rates of Bacillus thuringiensis var. thuringiensis Berliner in broth cultures containing insecticides were measured. Insecticides tested for compatibility included chlorinated hydrocarbons and their epoxies, carbonates, and oregano phosphates. Of these insecticides, only aldrin, heptachlor, and DDT at the rates of 0.93, 2.25, and 4.5 ppm significantly reduced growth rates. The chlorinated hydrocarbon epoxides, oregano phosphates, and carbamates had no significant effects on growth rates at these levels. Cell propagation of B. thuringiensis in distilled water containing 500 ppm of diazinon and malathion indicated metabolic breakdown of these compounds.

Document Type: Research Article

Publication date: December 1, 1971

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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