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In this study, the evaluation of some control methods against the two-spotted spider mite, Tetranychus urticae Koch on Eggplant Solanum melongen L. was carried out under field conditions at Beni-Suif Governorate, Egypt in season 2014.The predatory mite Phytoseiulus persimilis Athias-Henriot, (Acarina: Phytoseiidae), and The acaricide (Ortus) 5% E.C were tested. Obtained results showed that the total average number of the mite population was significantly different with control (F= 75.37, P < 0.0001 & EV = 87.6%), with the mean reduction percentage of significance (F= 56.31, P < 0.0001 & EV = 84.07%).The mean reduction percentage of the mite population on Eggplant cultivars using the released predatory mite P. persimilis at rate of 30 adult predators/eggplant seedling was significantly the highest reduction (82.74%), followed by (Ortus) (77.27%). The second trial included the released predator at levels 20 and 10 adult predators/eggplant seedling and gave the highest reduction at the level of 20 adult predators/eggplant seedling (70.71 and 61.43%). It could be concluded that the using P. persimilis at rate of 30 adult predators/eggplant for controlling T.urticae was superior than using The acaricde , Ortus 5% (E.C)

journal of plant protection and pathology /journal of plant protection and pathology

Efficacy of Predacious Mite, Phytoseiulus, Presimilis and The acaricide, Ortus in Cntrolling the Spider Mits, Tetranychus urticae on Eggplant at Beni-Suef Governorate, Egypt