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Nursery disease
Coffee is mainly propagated through seeds. Seedlings are raised in two stages under pandel shades.
The seedlings in the nursery are infected by the following diseases.
Collar rot Causal organism: Rhizoctonia solani Kuhn. Classification Class- Deuteromycotina, Order- Myceliasterilia. Collar rot or Damping off disease occurs on seedlings of 1-3 months age in the nursery if the conditions are favourable for growth of the fungus. Seedling loss may go up to 10-20% depending upon the severity of the infection. Both the commercially important cultivars of coffee are susceptible to this pathogen. The causal agent of collar rot fungus is reported to be soil inhabitant & is prevalent in all the coffee growing areas of India. Symptoms |
Last modified: Monday, 13 February 2012, 10:54 AM