TNAU Agritech Portal :: Crop Protection

Agricultural crops :: Pulses :: Redgram

Alternaria Leaf Spot: Alternaria alternata

Symptom

Initially small necrotic spots appear on the leaves, and these gradually increase in and form characteristic lesions with dark and light brown concentric ring with a wavy purple margin.
As infection progresses, the lesions coalesce and cause blighting of leaves
The disease is mostly confined to older leaves in adult plants, but may infect new leaves of young plants, particularly in the post rainy-season.

Management