Record Display for the EPA National Library Catalog
RECORD NUMBER: 3 OF 8Main Title | Fate of 'Bacillus sphaericus' 2362 Spores in Nontarget Invertebrates. | |||||||||||
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Author | Yousten, A. A. ; Benfield, E. F. ; Genthner, F. J. ; | |||||||||||
CORP Author | Environmental Research Lab., Gulf Breeze, FL. ;Virginia Polytechnic Inst. and State Univ., Blacksburg. Dept. of Biology. | |||||||||||
Publisher | c1992 | |||||||||||
Year Published | 1992 | |||||||||||
Report Number | EPA/600/J-93/065; | |||||||||||
Stock Number | PB93-168995 | |||||||||||
Additional Subjects | Bacterial spores ; Invertebrates ; Biological pest control ; Larva ; Feces ; Insects ; Aquatic biology ; Reprints ; Bacillus sphaericus ; Nontarget species ; Paragnetina media ; Pteronarcys proteus ; Tipula abdominalis ; Culex quinquefasciatus | |||||||||||
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Collation | 6p | |||||||||||
Abstract | Predatory stonefly larvae (Paragnetina media) acquired Bacillus sphaericus spores by eating spore-laden midge larvae. Leaf-shredding stonefly larvae (Pteronarcys proteus) and cranefly larvae (Tipula abdominalis) acquired spores by feeding on contaminated leaf discs. Upon switching to uncontaminated diets, both stonefly larvae eliminated the spores. Cranefly larvae, however, retained 18% of the spores in the posterior gut for up to 5 weeks, although spores were eliminated from the highly alkaline foregut. Spores recovered in cranefly fecal material had lost toxicity to mosquito larvae. (Copyright (c) Springer-Verlag 1992.) |