Experimental & Applied Acarology

, Volume 1, Issue 2, pp 127–138 | Cite as

Chemically mediated arrestment of the predaceous mitePhytoseiulus persimilis by extracts ofTetranychus evansi andTetranychus urticae

  • G. J. De Moraes
  • J. A. McMurtry
Article

Abstract

SinceTetranychus evansi Baker and Pritchard had been observed to be unfavorable prey for several species of phytoseiid mite predators, a study was conducted to determine the possible existence of an allomone produced by this species againstPhytoseiulus persimilis Athias-Henriot. Instead,P. persimilis was strongly arrested by extracts of eggs, adults and, especially, webbing plus excreta ofT. evansi. Methanol extracts ofTetranychus urticae (Koch) showed a stronger arrestment than extracts ofT. evansi.

Keywords

Methanol Methanol Extract Mite Predator Phytoseiid Mite Predator Strong Arrestment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Elsevier Science Publishers B.V. 1985

Authors and Affiliations

  • G. J. De Moraes
    • 1
  • J. A. McMurtry
    • 1
  1. 1.Division of Biological Control, Department of EntomologyUniversity of CaliforniaRiversideUSA

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