This is a cotton streak mosaic virus symptoms.
transmitted by whitefly sucking pest.
Management
- Install yellow sticky trap @20-30/acre.
- cut the infected branches of plant and destroy them.so it can prevent the spread of virus with in the field.
- Spray flonicamide 50%(Ulala)@10g/15 liters of water to control whitefly.
it is a collar rot/root rot symptoms.
Drenching should be done with carbendazim 50%WP@100g + humic acid @50g/10 liters of water.