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Using entomopathogenic fungi, as a powerful bio-control agent, is considered one of the promising methodologies in IPM programs. The current investigation aimed to test the efficiency of Metarhizium anisopliae, Verticillium lecanii, and Beauveria bassiana against whitefly on Eggplant (variety Anann) in Kafr El Sheikh Governorate, Egypt. The experiment was laid in a randomized complete block design, in an area of one feddan, divided into 4 plots (5 replicates each). The study extended from July till September, during two successive seasons (2019 and 2020) and each fungal product was sprayed four times (one spray/week). Temperature fluctuated from 29 to 35 ̊C and RH ranged from 49 to 52%. Results indicated that using entomopathogenic fungi significantly reduced B. tabaci population. V. lecanii was the most influential fungus, as it caused the highest control percentage compared to the other two fungi and control treatment. Repeating application during 4 successive weeks raised fungi effectiveness and caused ascending mortality levels in B. tabaci population. Production rates were in line with percentage reductions of whiteflies. The largest yield of eggplant’s fruits was produced in the plots treated with V. lecanii. Accordingly, the study recommends using V. lecanii in whiteflies control strategies in Egypt. Moreover, further investigations are needed to study compatibility of V. lecanii with other bio-agents to avoid inconsistency when applied together in pest management programs.

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

Comparative Effect of Three Entomopathogenic Fungi against Whitefly Bemisia tabaci (Gennadius) Infesting Eggplant under Field Conditions at Kafr El-Sheik Gov., Egypt