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 necessary for cutting and hatching. No adverse effect was observed on N. californicus eggs even in undiluted biopesticide. We conclude that this biopesticide and N. californicus can be used simultaneously in the integrated management of T. urticae in oily biopesticide‐tolerant plant species.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: A vegetable oil–based biopesticide with ovicidal activity against the two‐spotted spider mite, Tetranychus urticae Koch ; volume:20 ; number:11 ; year:2020 ; pages:525-534 ; extent:10 ; Engineering in life sciences ; 20, Heft 11 (2020), 525-534 (gesamt 10)

Contributors, Places and Time

• Creator: Takeda, Naoki ; Takata, Ayumi ; Arai, Yuka ; Sasaya, Kazuhiro ; Noyama, Shimpei ; Wakisaka, Shigekazu ; Ghazy, Noureldin Abuelfadl ; Voigt, Dagmar ; Suzuki, Takeshi

Further information

• DOI: 10.1002/elsc.202000042
• URN: urn:nbn:de:101:1-2022070612001142511235
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:31 AM CEST