Description:

• The fungus survives on plant debris and spreads through wind-borne spores.
• This disease occurs mostly in dry weather with high humidity conditions.

Damage Symptoms:

• Whitish or grey, tiny powdery growth is seen on foliage, stems, and growing parts of the plant.
• The superficial growth ultimately covers the entire leaf area.
• The diseased areas turn brown and dry, leading to premature defoliation and death.
• Fruits remain undeveloped and are deformed.

Preventive Measures:

• Maintain proper air circulation by pruning and spacing the plants.
• Avoid overhead irrigation to keep leaves dry.

Control Measures:

• Spray tridemorph 0.1% or Karathane @0.2%.
• Apply systemic fungicides like Tebuconazole or Myclobutanil.