Efficacy of entomopathogenic fungi Fusarium verticillioides (Saccardo) Nirenberg against Tetranychus urticae Koch on okra in polyhouse

Abstract

Studies on efficacy of acaropathogenic fungi F. verticillioidesagainst T. urticae on okra was conducted in polyhouse at Department of Entomology, N. M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat) India. The six different concentrations of F. verticillioides ranging from 1×105cfu/ml to 1×1010cfu/ml were evaluated against T. urticae on okra. Among the different treatments, F. verticillioides @ 1×1010cfu/ml concentration was found significantly superior with highest (75.04%) mortality at 10 days after application. Whereas, lowest (26.41%) mortality was observed @ 1×105cfu/ml concentration.