Bacillus thuringiensis toxins active against corn rootworm larvae
AssigneeMycogen Corporation
InventorsJewel Payne, Kenneth E. Narva
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Abstract
Disclosed and claimed are toxins and genes from Bacillus thuringiensis strains designated PS80JJ1, PS158D5, PS167P, PS169E, PS177F1, PS177G, PS204G4, PS204G6 which can be used to control corn rootworm. Mutants which retain the activity of the parent strain can be used to control the pest. Further, isolated spores or purified toxins from these isolates can be used to control corn rootworm. Genes encoding .delta.-endotoxins can be removed from these strains using standard well-known techniques, and transferred to other hosts. Expression of the .delta.-endotoxin in such hosts results in control of corn rootworm larvae.
Claims11
A method for controlling corn rootworms comprising contacting said corn rootworms with a corn rootworm-controlling amount of a Bacillus thuringiensis isolate, or a toxin of said Bacillus thuringiensis isolate, wherein said isolate is selected from the group consisting of PS80JJ1, having the identifying characteristics of NRRL B-18679;
- PS158D5, having the identifying characteristics of NRRL B-18680;
- PS167P, having the identifying characteristics of NRRL B-18681;
- PS169E, having the identifying characteristics of NRRL B-18682;
- PS177F1, having the identifying characteristics of NRRL B-18683;
- PS177G, having the identifying characteristics of NRRL B-18684;
- PS204G4, having the identifying characteristics of NRRL B-18685;
- and PS204G6, having the identifying characteristics of NRRL B-18686;
- and mutants thereof which retain activity against corn rootworms.
A method for controlling corn rootworms comprising contacting said corn rootworms with a corn rootworm-controlling effective amount of a pesticidal composition comprising substantially intact treated cells having prolonged pesticidal activity when applied to the environment of the corn rootworm, wherein said insecticide is produced by a Bacillus thuringiensis gene from a Bacillus thuringiensis isolate selected from the group consisting of PS80JJ1, having the identifying characteristics of NRRL B-18679;
- PS158D5, having the identifying characteristics of NRRL B-18680;
- PS167P, having the identifying characteristics of NRRL B-18681;
- PS169E, having the identifying characteristics of NRRL B-18682;
- PS177F1, having the identifying characteristics of NRRL B-18683;
- PS177G, having the identifying characteristics of NRRL B-18684;
- PS204G4, having the identifying characteristics of NRRL B-18685;
- and PS204G6, having the identifying characteristics of NRRL B-18686;
- and mutants thereof which retain activity against corn rootworms.
Dependencies are inferred from the claim text.