Mycopesticides can be ideal for the biocontrol of cockroaches because the habitat of these insects promotes initial fungal infection and its subsequent spread. The pathogenicity of three isolates of Beauveria bassiana to the American cockroach was tested. The insects were treated in three different ways, by direct contact with spore mass, a spore-wheat flour mixture and a spray of an aqueous spore suspension. A mortality of 100% in the first treatment, 67-100% in the second treatment and 17-75% in the third treatment was observed. These results suggest that B. bassiana spore formulations in food baits can be developed for cockroaches.
Biocontrol Science and Technology
Volume 9, 1999 - Issue 1
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