Causal Organism: Colletotrichum falcatum
It is the most dreaded fungal disease of sugarcane. The pathogen is both sett and soil borne. However, primary spread is mainly through infected setts.
- The disease starts with yellowing of leaves from top except crown leaves, after rainy season followed by considerable shrinkage of the stalk.
- Presence of reddish discoloured patches or lesions interspersed with white horizontal patches on the internal tissue i.e. pith.
- As the disease progresses the internal tissues become darker in colour and dry resulting in longitudinal pith cavities. The fugal mycelium may be seen in these dry cavities.
Submitted by kanchannainwal1 on Mon, 17/08/2009 - 12:57