Sunflower wilt or rot: Sclerotium rolfsii
Initial symptoms of the disease are noticed 40 days after sowing. The sickly appearance of plants can be noticed from a distance and a row effect can be observed in the heavily infested soil. Later the entire plant withers and dies.
White cottony mycelium and mustard-seed-type sclerotial bodies are conspicuous on the affected stem near soil level.
Collection and destruction of plant debris.
Seed treatment with Captan or Carboxin 3g/kg and drenching the base of the plant with Carbendazim 1g/lit.
- TamilNadu Agritech Portal