Diseases of Fruit Plantation Medicinal and Aromatic Crops

Black pit

Causal organism: Pseudomonas sytingae pv. syringae

The first symptoms are light brown spots on the skin of the fruits, becoming dark brown and eventually black later with markedly sunken spots. There may be concentric rings of brown colour and on a close examination, a small wound at the centre of each spot may be seen. Under moist conditions, greyish yellow droplets exude from the lesions but tissue below the spot remains firm.