Symptoms

• Leaf lesions typically are brown and circular with small to large light grey centres and dark brown margins. The lesions may enlarge to 1cm or more in diameter and some times coalesce.
• Stem, petiole and pod lesions also have light grey centres with dark borders, but they are typically elliptical.
• Severely infected leaves drop off prematurely resulting in reduced yield.

Management

• Spray twice at 10-15 days interval with Mancozeb 0.25% or Chlorothalonil (Kavach) 0.1%.