Diseases of fruit plantation medicinal and aromatic crops (2+1)

Creamy white spot

Causal organism: Creamy white spot virus
SYMPTOMS

• Small, pale yellow to white spots on the leaves.
• These spots coalesce and form large white areas.
• The virus is restricted to plum only.

MODE OF SPREAD

• Through grafting material and aphids vectors.

MANAGEMENT

• Use of disease free planting materials.
• Exposing the planting material to 37°C for 15-39 days.
• Apricot seedlings are used as a resistant root stock.
• Removal of alternate host plant.