Life Table Parameters of the Predatory Mite, Phytoseiulus persimilis Athias-Hcnriot on Four Tetranychid Prey Species (Phytoseiidae-Tetranychidac) | ||||
| Acarines: Journal of the Egyptian Society of Acarology | ||||
| Article 5, Volume 5, Issue 1, 2011, Page 19-22 PDF (2.72 MB) | ||||
| Document Type: Original research articles | ||||
| DOI: 10.21608/ajesa.2011.163602 | ||||
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| Authors | ||||
| O. M. Mohamed1; N. A. Omar2 | ||||
| 1Plant Protection Research Institute, A.R.C, Dokki, Egypt | ||||
| 2institute of Efficient Productivity, Zagazig University, Egypt | ||||
| Abstract | ||||
| Developmental duration, predation rate, reproduction and life table parameters of Phytoseiulus persimilis Athias-Hcmiot on the four tetranychid mites: Tetranychus urticae Koch., Oligonychus sayedi Zaher, Gomaa & EI-Enany, Eotelranychus zacheri Zaher, Gomaa & EI-Enany, and Petrobia tritici Kandeel, EI-Naggar & Mohamed. were studied at 25 ± 2°C and 70 ± 5% R.H. P. persimilis was able to feed and complete its development on the four tested preys. The predator exhibit a particularly high capacity for increase when fed on T. urticae and O. sayedi, feeding on P. tritici, enhanced poor predator performance as significant longer life cycle and decrease in adult female longevity and no eggs laying occurred. The period of adult female longevity increased to 24.1 days when fed on T urticae comparing to 23.4 & 14.2 days when fed on O. sayedi and E. zacheri, respectively. The result showed that low capacity of predator population growth suggests poor ability of P. persimilis to suppress E. zacheri and P. tritici populations on commercial crops. The daily multiplication rate (R0/T) and the intrinsic rate increase (rm) revealed that highest rate of P. persimilis fed on T. urticae which averaged 2.51 and 0.12, respectively. | ||||
| Keywords | ||||
| Phytoseiulus persimilis; Development Reproduction; Life table parameters; Tetranychid prey | ||||
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