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Apple Scab Information - What Does Apple Scab Look Like And How To Treat
Apple scab. Apple scab is a disease of Malus trees, such as apple trees, caused by the ascomycete fungus Venturia inaequalis. The disease manifests as dull black or grey-brown lesions on the surface of tree leaves, buds or fruits. ... Affected fruits are less marketable due to the presence of the black fungal lesions.
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