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Biology and feeding behavior of the predatory mite, Amblyseius swirskii (Acari, Phytoseiidae)

Momen, F.M. and Elsaway, S.A.

1993 - Volume: 34 Issue: 3 pages: 199-204


Predator life cycle Tetranychid Eriophyid Pollen Amblyseius swirskii


The predacious mite, Amblyseius swirskii Athias-Henriot completed its life cycle when fed on the tetranychid mite, Tetranychus urticae koch, the eriophyid mite, Eriophyes dioscoridis Soliman and Abou-Awad, and pollen grains of Ricinus communis (L.) as an alternative food substance in the laboratory. The development was faster and reproduction was higher when A. swirskii fed on E. dioscoridis. The duration increased and reproduction decreased respectively when A. swirskii was fed on R. communis. The predator female consumed daily 15 and 125 individuals of T. urticae and E. dioscoridis respectively. The number of eggs deposited per day (3.0 eggs/female/day) when fed on eriophyid mite, while feeding on the other prey and pollen grains were (1.7 eggs) respectively. Females neither fed nor reproduced on liquid nutrients.

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1993 Momen, F.M. and Elsaway, S.A.
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