Title: Relative potency of Bacillus thuringiensis var. israelensis and Bacillus sphaericus 2362 for Mansonia titillans and Mansonia dyari.
Abstract: Bacillus thuringiensis var. israelensis (B.t.i.), HD-968-S-1983, and a primary powder of Bacillus sphaericus 2362 were assayed against Mansonia titillans and Ma. dyari. The susceptibility of the 2 species to the individual bacterial toxins was similar. The B.t.i. LC50 values were 50.5 micrograms/liter for Ma. dyari and 54.7 micrograms/liter for Ma. titillans; the B. sphaericus LC50 values were 339.0 micrograms/liter and 347.2 micrograms/liter, respectively. The log dose-probit mortality lines were parallel for both target species. The potency of B. sphaericus relative to B.t.i. was 0.15 for Ma. dyari and 0.16 for Ma. titillans.
Publication Year: 1990
Publication Date: 1990-06-01
Language: en
Type: article
Indexed In: ['pubmed']
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Cited By Count: 3
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