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Dry powder commercial formulations of Bacillus sphaericus Neide 1593 and B. thuringiensis var. israelensis deBarjac were applied to test ponds at dosages equivalent to 0.5, 1, and 2 kg/ha. Natural populations of the Australian encephalitis vectors, Culex quinquefasciatus Say and C. annulirostris Skuse, and a potential malaria vector, Anopheles annulipes Walker, were controlled at 1 and 2 kg/ha. No evidence of residual activity beyond day 2 was seen in assessment of natural repopulation of ponds or in mortality of caged larvae confined in test ponds. B. sphaericus 1593 and B. thuringiensis var. israelensis were very similar in efficacy in these tests.
Document Type: Research Article
Publication date: June 1, 1981
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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.