Black root rot

Roots turn black and rot      General Information : Excessive moisture and moderately high temperatures (25o - 30oC) encourage disease development.      Symptoms : The disease can occur at any stage. Affected plants turn yellow and wilt. Dead plants are seen scattered in the field. The root system is rotten most of the finer roots are shed, and the remaining roots turn black.

Control : Avoid high soil moisture. Seed treatment with thiram +benomyl, thiram + captan at 3 g kg -1 of seed.