| 摘要 |
Certain isolates of Bacillus thuringiensis (B.t.) have been found to have activity against scarab pests. These isolates are designated B.t. PS86B1, B.t. PS43F and B.t. PS50C. These isolates, or transformed hosts containing the gene expressing a scarab-active toxin obtained from the isolates, can be used to control scarab-active pests, e.g., masked chafer, Cyclocephala sp., June beetle, Cotinis sp., northern masked chafer, Cyclocephala borealis, Japanese beetle, Popillia japonica, and Pasadena masked chafer, Cyclocephala pasadenae, in various environments.
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