the symptoms of anthracnose black spots on the berries of the grapes on white.

affected anthracnose background bacteria berries berry black branch bushes close closeup colletotrichum disease downy food fruit fungal fungi fungicide fungus garden gardening grapes green growth guava horticulture isolated leaf mildew natural nature orchard organic pathogen pathology peronospora pest plant plaque plasmopara prevention rosania sick spot spots summer symptoms virus viticola white