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Scab

Numerous round to irregular lesions appear on both surfaces of leaflets.The lesions on upper leaflet surfaces are light tan with sunken centers and raised margins. Lesions are frequently covered with continuous velvet-like layers of grayish olive green fruiting bodies.

 

The lesions on petioles and branches may develop into cankerous scabs, giving the plants a burnt appearance (Fig.).Lesions cover nearly all of the plant, including pegs.In advanced stages of disease development plants are stunted.