Field Crops News

New Bacillus thuringiensis Strain Active Against Corn Rootworms

Scientists at Ecogen, Inc., Langhorne, PA have isolated a new strain of Bacillus thuringiensis that is active against adults and larvae of the southern corn rootworm. This is the first report of a Bacillus thuringiensis strain active against corn rootworms. Other strains have been isolated before with activity against beetles (e.g., Colorado potato beetle, elm leaf beetle), but these strains were not active against corn rootworms. This discovery provides for the possibility of microbial-based control strategies being developed for corn rootworms.

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