Diseases of Fruit Plantation Medicinal and Aromatic Crops

Leaf Blight

Causal organism : Glomerella cingulata
Symptoms

• Light brown small circular spots on upper surface of leaves.
• Spot size increase &coilage forming reddish brown to black patches.
• Then death of Tissue occurs and Plant dries up.
Aetiology

• septate mycelia
• Sexual spores are ascospores borne in ascus , and the asexual spores are air borne conidia borne in acervulus .
Epidemiology

• warm weather fungi, with a temperature range of 28-300C ,
• Relative humidity 80-85%,
• Susceptible host.
Management

• Aerial spray of carbendazim 1.5g/l, together with treating the tubers with the same.