The Effectiveness of the Integration among BeauveriabassianaVuill., Isaria fumosorosea (Wize) and Insecticides Against Bemisiatabaci(Genn.)
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Abstract
This research was carried out to determine the compatibility of different components of integrated pest management (the entomopathogenic fungi: Isariafumosorosea ,Beauveriabassiana Bbk, the pesticide Imidacloprid and Mineral oil) and their efficiency to control the white fly Bemisiatabaci on tomato. The results showed a weak effect of the two pesticides at a field dose and a half field dose on the vegetative growth and spores production of B.bassianaBbk and I. fumosorosea, this reflects the compatibility between the two pesticides and these fungi . Using of their combinations against whitefly nymphs showed that the Imidacloprid + I. fumosorosea gave the highest mortality rate after three days of treatment (79.6%), followed by the Mineral oil with B. bassiana Bbk (78.6%). After seven days the superiority of the Imidacloprid + I.fumosorosea continued (91.7 %) without significant difference from other combinations, but with significant difference from the agents used alone.