Application of predator mite , Phytoseialus persimilis Athias _Henriot for Biological control of spider mite on rose in qreenhouse coditions
2009
Hosani Nia, A | Arbabi, M | Zamani, S | Matin, R | Nori, M. | Fattahi, M | Haidari, M | Hashami, S. H | Ghadami, GH | Masihi, S. R | Amiri, L | Sharifi, A
Tetranychus urticae Koch and T. cinnabarinus (Boisduval) are the most important pests in often rose species and also Phytoseiulus persimilis Athias-Henriot is the most important predator of them in greenhouse. According to research design, a extension design performed in 6 greenhouses of 2 floriculturists (A & B) in 2005 and 2006. Three greenhouses selected of each floriculturist for the design: A greenhouse without spray as control, a greenhouse with common spray (with abamectin EC 1.8% 0.20ml/lit + Volk oil 100% 0.25 ml/lit) and a greenhouse with integrated control, beginning spray abamectin 0.20ml/lit mixed to Volk oil 0.25 ml/lit afterwards release with the predator mite amounting to 1:10 predator to prey in conformity with 100 samples. Data noted down previous and next of spray and predator release distance in 5 days till 30 days. Results showed integrated control greenhouses were consisted the least number of spider mites then spray greenhouses and afterwards control greenhouses were in after level. Effect percentage of methods counted by Henderson_Tilton formula and data analysis performed after transformed to Arcsin x . Treatments mines compared with Duncan's multiple range testing and treatment were significant differences with control (á=5%). Integrated (A), integrated (B), spray (A), spray (B), control (A) and control (B) greenhouses have 93.56, 67.28, 64.69, 60.04, 0.0 and 0.0 effect percentage respectively. According to the results integrated method with 93.52% mortality was the most effective that recommended using of rose greenhouse. Of course in rose fields must to increase release predator mites in during year. So in outbreak of spider mites in fields must use up biological poison mixed oil.
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