Abstract
Biological characteristics, life table parameters and predation rate of the predatory mite, Cheletogenes ornatus (Canestrini & Fanzago) (Acari: Cheyletidae) were studied when reared on eggs and immature stages of different types of food; the date scale insect, Parlatoria blanchardii (Targ.) and three phytophagous mite pests [Tetranychus urticae Koch(Tetranychidae), Raoiella indica Hirst (Tenuipalpidae) and Acarus siro Linnaeus (Acaridae)] under laboratory conditions. Females of the predatory mite passed through two nymphal stages before reaching adulthood, while predatory male passed through only one stage. Cheletogenes ornatus male and female fed successfully on the four tested preys mentioned previously. Acarus siro increased the oviposition period of C. ornatus females to 18.92 days with daily rate of deposited eggs 5.18 eggs/ day. So, Acarus siro seemed to be the most favorable prey for the predatory mite, C. ornatus compared with other tested preys.
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