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26 August 2022 Biopesticide and acaricides impair survival, predation, oviposition, and conversion of food into eggs of a phytoseid mite, Amblyseius largoensis (Acari: Phytoseiidae)
Maria Edvânia Neves Barros, Francisco Wesller Batista da Silva, Debora Barbosa de Lima, José Wagner da Silva Melo
Author Affiliations +
Abstract

Amblyseius largoensis (Muma) is a predatory mite that occurs naturally in plants infested with the pest mite, Raoiella indica Hirst, and has been reported as a potential predator for the control of R. indica. Since A. largoensis is not available commercially, coconut producers have used products registered for another coconut pest mite (Aceria guerreronis Keifer) against R. indica with the aim of minimizing economic losses caused by this pest. However, it is possible to explore the natural contribution of this predator using control strategies that allow its conservation. Thus, in the present study, the effects of pesticides registered for the coconut crop (azadirachtin, abamectin, chlorfenapyr, and fenpyroximate) on the survival, consumption, oviposition, and feed conversion efficiency of A. largoensis were evaluated to determine the compatibility between acaricides and the predatory mite. The results showed that the acaricides abamectin, fenpyroximate, and chlorfenapyr reduced the survival of A. largoensis females. Abamectin was the only acaricide that reduced predation, oviposition, and the feed conversion efficiency of A. largoensis. Azadirachtin did not affect any of the assessed parameters. These results suggest a potential compatibility A. largoensis with the pesticides azadirachtin, fenpyroximate, and chlorfenapyr.

© Systematic & Applied Acarology Society
Maria Edvânia Neves Barros, Francisco Wesller Batista da Silva, Debora Barbosa de Lima, and José Wagner da Silva Melo "Biopesticide and acaricides impair survival, predation, oviposition, and conversion of food into eggs of a phytoseid mite, Amblyseius largoensis (Acari: Phytoseiidae)," Systematic and Applied Acarology 27(10), 1867-1877, (26 August 2022). https://doi.org/10.11158/saa.27.10.2
Received: 19 January 2022; Accepted: 16 February 2022; Published: 26 August 2022
KEYWORDS
biological control
chemical control
conservation biological control
selectivity
sublethal effects
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