A vegetable oil-based biopesticide with ovicidal activity against the two-spotted spider mite, Tetranychus urticae Koch.

ABSTRACT: A recently developed biopesticide made of safflower and cottonseed oils has excellent ovicidal activity against the hard-to-control spider mite Tetranychus urticae Koch (Acari: Tetranychidae). It has attracted attention as a sustainable treatment for controlling T. urticae because it has low potential for promoting resistance and little effect on the predatory mite Neoseiulus californicus (McGregor) (Acari: Phytoseiidae), which is an important natural enemy of spider mites. Here, we investigated the mechanism of its ovicidal activity against T. urticae. The oil droplets in the oil-in-water emulsion of the biopesticide strongly adhered to T. urticae eggs, seeped through the chorion being cut during hatching, and inhibited the embryonic rotational movement

SUBMITTER: Takeda N 

PROVIDER: S-EPMC7645644 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature