Symptoms:-

• Leaves, stem, and pods of French bean are susceptible to infection.
• Small reddish-brown, slightly sunken spot form on the pods and rapidly develop into large, dark-suken lesion.
• In moist weather, masses of pink spores develop on these lesions.
• Black sunken spots, similar to those on the pods are produced on the stem and left stalks.
• Infection of the leaves causes blacking along the veins particularly on the under surface.

Control:-

• Use disease free certified seed.
• Do not grow French bean for at least two years in the same land that has carried on infected crop.
• Remove and destroy the disease infected French bean plants to check the spread of disease.
• Seed treatment with carbendazim 3gm/kg seed.
• Weekly spray with Mancozeb 3 gm/litre or chlorothalonil 2 gm/litre of water from first leaf stage till the pods mature.

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