Bacillus thuringiensis isolates for controlling acarides
AssigneeMycogen Corporation
InventorsJewel M. Payne, Raymond J. C. Cannon, Angela L. Bagley
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Abstract
Disclosed and claimed are Bacillus thuringiensis isolates designated B.t. PS45B1, B.t. PS24J, B.t. PS94R3 B.t. PS17, B.t. PS62B1 and B.t. PS74G1 which are active against acarid pests. Thus, these isolates, or mutants thereof, can be used to control such pests. Further, genes encoding novel .delta.-endotoxins can be removed from these isolates and transferred to other host microbes, or plants. Expression of the .delta.-endotoxins in microbe hosts results in the control of acarid pests, whereas transformed plants become resistant to acarid pests.
Claims20
A process for controlling acarid pests of livestock, fowl, and stored products, which comprises contacting said pests with an acarid-controlling effective amount of a Bacillus thuringiensis isolate selected from the group consisting of B.t. PS45B1, B.t. PS24J, B.t. PS94R3, B.t. PS17, B.t. PS62B1, and B.t. PS74G1, and mutants thereof, which retain the property of activity against acarid pests.
A method for controlling acarid pests of livestock, fowl, and stored products, which comprises contacting said pests with an acarid-controlling effective amount of a stable lysis.sub.- spo.sub.- cry.sup.+ Bacillus thuringiensis isolate selected from the group consisting of B.t. PS45B1, B.t. PS24J, B.t. PS94R3, B.t. PS17, B.t. PS62B1 and B.t. PS74G1, and mutants thereof, which retain the property of activity against acarid pests.
A composition of matter comprising a Bacillus thuringiensis isolate selected from the group consisting of B.t. PS24J, and B.t. PS94R3, and mutants thereof, which retain the property of activity against acarid pests in association with an inert carrier.
A pesticidal composition comprising substantially intact, treated Bacillus thuringiensis cells having prolonged pesticidal activity and greater persistence in the feeding zone when applied to the environment of acarid pests, wherein said pesticide is a polypeptide toxic to acarid pests, is intracellular, and is produced by a Bacillus thuringiensis isolate selected from the group consisting of B.t. PS24J, and B.t. PS94R3, and mutants thereof, which retain the property of activity against acarid pests.
A toxin encoded by a gene from a Bacillus thuringiensis isolate selected from the group consisting of B.t. PS24J, and B.t. PS94R3, and mutants thereof, which retain the property of activity against acarid pests, wherein said toxin is active against acarid pests.
A biologically pure culture of Bacillus thuringiensis selected from the group consising of B.t. PS94J, and B.t. PS94R3, and mutants thereof, which retain the property of activity against acarid pests.
Dependencies are inferred from the claim text.