Crop diseases
Watermelon Diseases
Disease names frequently listed for Watermelon varieties. Prefer resistant cultivars and cultural prevention where possible.
Diseases mentioned for this crop
- Downy Mildew 28 mentions
- Powdery Mildew 27 mentions
- Bacterial Wilt 27 mentions
- Fusarium Wilt 14 mentions
- Anthracnose 11 mentions
- Gummy Stem Blight 10 mentions
- Bacterial Fruit Blotch 10 mentions
- Alternaria Leaf Spot 8 mentions
- Alternaria Leaf Blight 4 mentions
- Crown Rot 1 mentions
- Mosaic Virus 1 mentions
Resistance notes from varieties
- Good resistance to anthracnose and fusarium wilt
- Moderate resistance to powdery mildew, some tolerance to fusarium wilt
- Good resistance to fusarium wilt and powdery mildew
- Excellent resistance to anthracnose and fusarium wilt
- Fusarium Wilt races 0-2 (High); Powdery Mildew (Intermediate)
- Good resistance to cool weather stress, moderate disease resistance
- Good cold tolerance, moderate disease resistance
- Good resistance to powdery mildew and aphids
FAQ: diseases of Watermelon
What diseases affect Watermelon?
Cultivar notes commonly mention Downy Mildew, Powdery Mildew, Bacterial Wilt, Fusarium Wilt, Anthracnose, Gummy Stem Blight, Bacterial Fruit Blotch, Alternaria Leaf Spot, Alternaria Leaf Blight, Crown Rot, Mosaic Virus. Choose resistant varieties where available and improve airflow / drainage to reduce risk.
Lists are aggregated from cultivar notes, not a lab diagnosis. Confirm with local extension before treating.