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

Target leaf spot

Causal organism: Myrothecium advena
Symptoms
Brown circular or irregular necrotic spots are formed on leaves.
Concentric zonation visible on the upper surface of the leaves, give a characteristic target board appearance, hence the name target leaf spot.
Severe infection may cause defoliation.
Mostly leaves near or touching the soil are infected.