Identification symptoms

1. The fungus infects the seedlings and produces small reddish circular spots on the cotyledons and primary leaves. The lesions develop on the collar region, stem may be girdled, causing seedling to wilt and die.

2. In mature plants, the fungus attacks the stem, leading to stem splitting and shredding of bark. The most common symptom is boll spotting.

3. Small water soaked, circular, reddish brown depressed spots appear on the bolls.

4. The lint is stained to yellow or brown, becomes a solid brittle mass of fiber.

5. The infected bolls cease to grow and burst and dry up prematurely.