Susceptibility tests of the house fly adults, Musca domestica to Bacillus thuringiensis

M. E. M. Habib; M. A. Garcia

doi:10.37486/0301-8059.v5i2.77

Authors

M. E. M. Habib
M. A. Garcia

DOI:

https://doi.org/10.37486/0301-8059.v5i2.77

Abstract

Susceptibility tests of Musca domestica adults to Bacillus thuringiensis in a fom of a biobacterial preparation, or insecticide "BIOTROL XK", proved that the LD₅₀, LD₇₀ and LD90 after 24 hours were 5.35 x 10⁹; 7.5 x 10⁹and 1,09 x 10⁹viable spores/gm. After 48 hours, the same doses were 3.84 x 10⁹; 5.54 x 10⁹ and 7.75 x 10⁹. After 72 hours, the doses were 3.31 x 10⁹; 4.89 x 10⁹ and 6.91 x 10⁹. Finally, the same doses after 96 hours were 2.69 x 10⁹; 3.86 x 10⁹and 5.62 x 10 ⁹viable spores/gm. respectively.

The adults were infected per os. The biological preparation could not be recommended in the biological control of this insect without studying the susceptibility of its larval instars to the samee preparation.

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