How to manage cercospora leaf spot disease in okra crop

The early symptoms appear on the lower leaves which turns the color of the leaves brown.
Due to this disease, the leaf takes up a cylindrical form and falls.
For the prevention of this disease, Thiophanate methyl 70% W / W @ 500 gram/ acre or chlorothalonil 75% WP @ 400 gram/acre.
Use pseudomonas fluorescens @ 250 gram/acre as a biological treatment