Physiological effect of the host plant on the suitability ofTetranychus urticae as prey forPhytoseiulus persimilis [Acari: Tetranychidae,Phytoseiidae] |
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| Authors: | G J de Moraes J A McMurtry |
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| Institution: | (1) Division of Biological Control, Department of Entomology, University of California, 92521 Riverside, USA;(2) Present address: CPATSA/EMBRAPA, 56300 Petrolina, PE, Brazil |
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| Abstract: | Weight gain of adult femalesPhytoseiulus persimilis Athias-Henriot was determined after they were fed eggs or adult females ofTetranychus urticae Koch reared on either Lima bean (Phaseolus vulgaris L.) or nightshade (Solanum douglasii Dunal). No significant difference was found when the predator was fed eggs ofT. urticae reared on either host. Predators were heavier when fed adult femaleT. urticae reared on bean. Apparently, a factor determining the prey's suitability is incorporated into its hemolymph or tissues and
is not restricted to its gut content.
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| Keywords: | Tetranychus evansi Tetranychus urticae Phytoseiulus persimilis Tetranychidae Phytoseiidae |
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