GROUNDNUT :: MINOR DISEASE :: ANTHRCNOSE

Anthracnose - Colletotrichum dematiumand C. capsici
Symptoms
            Small water-soaked yellowish spots appear on the lower leaves which later turn into circular brown lesions with yellow margin 1 to 3 mm in diameter. In some cases lesions enlarge rapidly become irregular and cover the entire leaflet, and extend to the stipules and stems. Brownish grey lesions occur on both the surfaces of leaflets. Infection spreads to stipules, petioles and branches.

Symptoms

Disease cycle
The pathogen is seed, soil and air-borne.
Management

• Deep summer ploughing.

• Use healthy certified seeds.
• Removal of plant debris.
• Seed treatment with copper oxychloride at 3g/kg seed or carbendazim at 2g/kg seed.