In vitro evaluation of various antagonists against Cercospora malayensis causing leaf spot of okra

Abstract

Okra (Abelmoschus esculentus L.) is one of the foremost vegetable crop grown extensively in south Gujarat during Kharif as well as summer seasons. Cercospora leaf spot incited by Cercospora malayensis (Stev. and Solh.) is a minor disease which was less significant earlier but is now considered as one of the emerging disease in south Gujarat region. Out of seven antagonists evaluated against C. malayensis under in vitro. T. viride appeared as strong and potent antagonism against C. malayensis. T. viride showed maximum antagonistic effect against the pathogen and had highest growth inhibition (86.86%) followed by T. harzianum(59.74%).