The Effectiveness of the Integration among BeauveriabassianaVuill., Isaria fumosorosea (Wize) and Insecticides Against Bemisiatabaci(Genn.)

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.