• The symptom appears as grayish-white powdery substance on the surfaces of young leaves, shoots and buds.
• Infected leaves may be distorted, and some leaf drop may occur.
• Flower buds may fail to open, and those that do may produce poor-quality flowers.
• It can occur almost anytime during the growing season when temperatures are mild (70 to 80 °F), and the relative humidity is high at night and low during the day.
• It is most severe in shady areas and during cooler periods

Powdery mildew on leaves	Powdery mildew on stalks	Powdery mildew on buds

Management:

• Collection and burning of fallen leaves.
• Spray with Wettable sulphur 0.3% (or) Carbendazim 0.1% 2-3 sprays at 15 days interval is effective.
• Sulphur dust at 25 kg/ha.
• Use of sulphur at higher temperature conditions will be phytotoxic.