bunch of grapes affected by powdery mildew or oidium with cracked and rotten berry.

affected agriculture background berry branch bunch closeup cracked disease diseased downy false fertilizer fresh fruit fungal fungi fungicide fungus garden gardening grape grapes grapevine green growing harvest hazardous horticulture infection insecticides leaf leaves mildew mold natural oidium organic outdoors pathogen plant plaque powdery rotten sick spores spray spread summer vine vineyard viticulture wine winery