Symptoms

• White powdery growth on upper surface later turns greyish forming cleistothecia
• Flowers and young capsules affected.
• Premature shedding.

Identification of pathogen

• Mycelim: Intercellular


• Asexual spore: Conidia


• Sexual spore: Ascospores

Conidia

• Warm sultry weather

Mode of Spread and Survival

• Air borne conidia and ascospores in the debris

Management

• Wettable sulphur 80 WP @ 1 kg/ha twice at 15 days interval, starting from 3 months after sowing.
• Apply sulphur dust @ 25 kg/ha.