Bacillus thuringiensis isolates active against cockroaches
AssigneeMycogen Corporation
InventorsH. Ernest Schnepf, John B. Randall, Jewel M. Payne
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Abstract
The subject invention concerns novel materials and methods for the control of cockroaches. Cockroaches are common house pests, and they create problems in hospitals, the food industry and in agriculture. According to the subject invention, activated toxins of Bacillus thuringiensis var. israelensis (B.t.i.) are used to control cockroaches. In one embodiment, the subject invention also concerns the use of B.t. PS123D1 to control cockroaches. A truncated form of a toxin obtained from PS123D1 having particular activity to cockroaches is also claimed for use in controlling the pest.
Claims9
A method for controlling cockroaches which comprises feeding said cockroaches an effective mount of a Bacillus thuringiemsis var. israelensis toxin of between about 25 kD and about 33 kD as measured by SDS PAGE.
A method for controlling cockroaches which comprises
- (1) preparing a bait comprising a Bacillus thuringiensis var. israelensis isolate;
- or spores, crystals, or toxins of said isolate;
- and
- (2) placing said bait in areas visited by cockroaches.
Dependencies are inferred from the claim text.