Symptoms

• In affected leaves, elliptic or oblong spots with yellow halo are seen.
• The centre of spots are grayish white and then with numerous black dots in centre
• As the disease advances, the leaves dry up and give a scorched appearance.

Management

• Field sanitation
• Spray with Mancozeb 0.25% or copper oxy chloride 0.25% immediately after the appearance of symptom and at 15 days interval