2. Symptoms
Small, circular reddish-brown spots with concentric rings
on leaves
Dark brown lesions on petioles, stem and capsules
Blighting of leaves and defoliation
Splitting of capsules and shrivelled seeds.
3.
4. PATHOGEN
Alternaria sesami
Conidiophore : Occasionally in groups
Conidia : Obclavate and light olive in colour in chains.