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US 4,902,507 AGranted
Toxic strains of the bacterium Bacillus thuringiensis for control of the bertha armyworm Mamestra configurata
AssigneeCanadian Patents and Development Limited
InventorsOswald N. Morris, Marc R. Trottier
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Abstract
An insecticidal composition for controlling or inhibiting the growth of larvae of the Bertha armyworm, comprising an insecticidal substance of one or more strains of Bacillus thuringiensis and an insecticidally acceptable carrier. The strains belong to the varieties aizawai, kurstaki and kenyae and include Bacillus thuringiensis var. aizawai strain HD-133.
Claims9
A method for killing the larvae of Mamestra configurata on a plant characterized in that a larvicidal amount of an insecticidal substance of at least one selected strain of Bacillus thuringiensis is applied to said plant,
- said insecticidal substance comprising delta-endotoxin of said strain,
- said strain of Bacillus thuringiensis being selected from the class of strains consisting of
- Bacillus thuringiensis var. aizawai strain HD-133;
- Bacillus thuringiensis var. aizawai strain HD-131;
- Bacillus thuringiensis var. aizawai strain HD-127;
- Bacillus thuringiensis var. aizawai strain HD-113;
- Bacillus thuringiensis var. aizawai strain HD-135;
- Bacillus thuringiensis var. kurstaki strain HD-262;
- Bacillus thuringiensis var. kurstaki strain HD-337;
- and
- Bacillus thuringiensis var. kenyae strain HD-551.
8 more elements
Dependencies are inferred from the claim text.