EVALUATION OF THE EFFECTIVENESS OF THE ENTOMOPATHOGENIC FUNGI AGAINST THE WHITEFLIES Bemisia tabaci (Hemiptera: Aleyrodidae) DAMAGES VEGETABLES IN LABORATORY AND NET HOUSE CONDITIONS

Abstract

The studies aimed to determine some of the entomopathogenic fungi, such as Paecilomyces fumosoroseus, Beauveria bassiana, and Verticillium spp. against the whitefly larvae. The results showed that, under laboratory conditions, at a concentration of 10⁸ spores/mL, the fungal strains Paecilomyces fumosoroseus, Beauveria bassiana, and Verticillium spp. are all effective against the whitefly larva Bemisia tabaci. At the 9-day post-application period, all Paecilomyces fumosoroseus fungal strains demonstrated high efficacy from 77.5 to 95%. The treatments using Beauveria bassiana had efficacy above 83%. Similarly, all strains of Verticillium spp. showed high effectiveness above 80% (except the Ver-RS treated). Additionally, under greenhouse conditions, the Bb-RPT; Pae-RPT, and Ver-RPT₁ achieved the highest efficacy 91.8%; 91.1%; 88.8%, respectively.