Abstract:

Cotton beans Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is among the most important damages that cause economic losses in agricultural production. The need for bio-ecological characteristics is increasingly difficult to fight because of the resistance it develops against insecticides. In this study, the entomopathogenic characteristics of Cladosporium xantochromaticum, Fusarium chlamydosporum and Penicillium oxalicum isolates isolated from B. tabaci, which can be used in the biological fight of harm, have been determined in laboratory conditions. In the study, P. oxalicum isolat has shown a 65% and 30% impact on the nimph and adolescent period, respectively. This isolat was followed by C. xantochromaticum isolat at the same rate of 48% and 31%. The specified isolates have also caused the extension of the pre-adolescent development periods of damage. The study identified two hopeful isolates (P. oxalicum and C. xantochromaticum) that could contribute to the biological struggle of B. tabaci. The integration of these insulates with hunters and parasites is believed to increase the success of biological combat practices to be carried out against harmful.

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