CFAES Give Today
Buckeye Appellation

College of Food, Agricultural, and Environmental Sciences

CFAES

Diseases

Powdery Mildew on leaves
Powdery Mildew on leaves

 White or gray powdery mildew patches appear on the upper and lower leaf surface.                                           

502
Phomopsis symptoms on shoots
Phomopsis symptoms on shoots

Elongated and sunken black lesions on shoots

501
Phomopsis symptoms on leaves
Phomopsis symptoms on leaves

Small light-green lesions with irregular margins appear early in season.

498
Phomopsis symptoms on berries
Phomopsis symptoms on berries

Multiple black fruiting bodies erupt through the skin, giving the berries speckled appearance and rough texture.

497
Sour rot on white variety
Sour rot on white variety

Sour rot symptoms on berries of white variety

496
Sour rot on Dark variety
Sour rot on Dark variety

Sour rot symptoms on berries of dark variety

495
Berries with downy white spores
Berries with downy white spores

Under humid conditions, Downy mildew covers the berries with downy white spores.

494
White Down mildew spores on infected stem
White Down mildew spores on infected stem

Masses of white, down-like spores appear on infected shoots, stems and tendrils.

493
Dense white Downy mildew spots
Dense white Downy mildew spots

During periods of wet weather and high humidity, masses of spores form on the underside of the leaf lesion. Lesions with spores appear as a dense white mass.

492
Downy mildew symptoms on leaf surface
Downy mildew symptoms on leaf surface

As the leaf ages, the Downy mildew spots turn brown (necrotic) and become crusty.

491
Anthracnose lessions on shoot
Anthracnose lessions on shoot

Shoots develop small oval shaped, purplish brown sunken lesions with raised edges.

490
Anthracnose - Bird's eye lesions on berries
Anthracnose - Bird's eye lesions on berries

Initially small reddish brown spots appear which than enlarges to purplish brown spots with lighter center, giving it a distinctive appearance of a bird’s eye.

489

Pages