Research Article

**Functional Response of Orius albidipennis (Hemiptera: Anthocoridae) to the Two-spotted Spider Mite Tetranychus urticae (Acari: Tetranychidae)**

Nesrin A. El-Basha, M.S. Salman and M.A. Osman

The objective of this study was to determine the functional response of the predator Orius albidipennis (Reuter) fed on egg of Tetranychus urticae Koch. We conducted a logistic regression of the proportion of prey consumed as a function of initial prey density to identify functional response types and used nonlinear least-squares regression and the random predator equation to estimate attack rates and handling times. Overall, all stages of O. albidipennis exhibited a type-I functional response to T. urticae. Whereas, attack rate (a) and handling time (T_h) of O. albidipennis female and male recorded 1.267, 0.828, 0.0122 and 0.0141 when offering eggs of T. urticae, respectively.

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Nesrin A. El-Basha, M.S. Salman and M.A. Osman, 2012. Functional Response of Orius albidipennis (Hemiptera: Anthocoridae) to the Two-spotted Spider Mite Tetranychus urticae (Acari: Tetranychidae). Journal of Entomology, 9: 248-256.

DOI: 10.3923/je.2012.248.256

URL: https://scialert.net/abstract/?doi=je.2012.248.256

Journal of Entomology

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Authors

Nesrin A. El-Basha

M.S. Salman

M.A. Osman

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Research Article

**Functional Response of Orius albidipennis (Hemiptera: Anthocoridae) to the Two-spotted Spider Mite Tetranychus urticae (Acari: Tetranychidae)**

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