Root and Foot rot
Causal organism : Corticium solani Symptoms
- On leaves brownish black discoloration. Then completely affected leaves detached from the stem.
- On root it colonizes and rotting of the roots is the final symptom
- It also colonizes and causes foot rot
Aetiology
- Septate mycelia, sclerotial bodies are vegetative stage asexual spore are mycelial strands, sexual spores are besidiospores
Epidemiology
- Cool weather, Temperature 18-22oC,Relative Humidity 75-90%, optimum soil moisture.
- Primary Sources of Inaculam: Sclerotial bodies present in debris.
- Secondry Sources of Inaculam: Mycelial strands, Basidiospores.
Management
- Affected debris destruction
- Summer ploughing
- Crop rotation
- Soil sterilization
- Biological agent
- Carbendizim 0.1% or Mancozeb 0.25% as soil drenching.
|
Last modified: Thursday, 1 March 2012, 9:20 AM