• Powdery growth mostly on the upper surface of the leaves.
• Malformation and discolouration of affected leaves.
• Discolouration of stem to dark brown.
• Floral infection results in shedding of flowers and poor fruit set.
• Early berry infection results in shedding of affected berries.
• Powdery growth is visible on older berries and the infection results in the
• Cracking of skin of the berries.

• It spread through air-borne conidia
• Through dormont mycelium and conidia present in the infected shoots and buds.
• Sultry warm conditions with dull cloudy weather, highly favourable.

Management

• Spray Inorganic sulphur 0.25 % or Chinomethionate 0.1 % or Dinocap 0.05 %.