Boll rot
It is a complex disease caused by several fungal pathogens viz., Fusarium moniliforme, Colletotrichum capsici, Aspergillus flavus, A. niger, Rhizopus nigricans, Nematospora nagpuri and Botryodiplodia sp.
Symptom:
- Brown or black dots covering entire bolls
- Rotting may be internal or external
- Bolls do not open and fall prematurely
Management:
- Adopt optimum spacing.
- Apply the recommended doses of fertilizers.
- Spray Carbendazim 1kg or Mancozeb 2 kg/ha from 45th day at 15 days interval.
Source-
- TamilNadu Agritech Portal
