Cucurbit Diseases



These are pictures and descriptions of different diseases affecting the Cucurbit.



Angular leaf spot of cucumber

Angular leaf spot of cucumber fruit

Anthracnose close-up on watermelon

Anthracnose on watermelon fruit

Anthracnose symptoms on cucumber

Anthracnose symptoms on watermelon

Bacterial wilt of melon

Belly rot of cucumber-Rhizoctonia
solani

Black rot of melon

Black rot on butternut squash with
irrregular ring patterns

Black rot stem lesion on cucumber

Blossom-end rot of watermelon

Choanephora fruit rot of summer squash

Cucumber mosaic of summer squash

Dodder on cucumber

Downy Mildew of melon-lower
leaf surface

Downy Mildew of melon-upper
leaf surface

Fusarium rot on pumpkin

Gummy stem blight on melon leaves

Gummy stem blight-pycnidia of
Phoma cucurbitacearum

Gummy stem blight-stem canker on melon

Low-temperature injury in
cuke seedlings

Magnesium deficiency in melon

Manganese toxicity in melon

Molybdenum deficiency in melon

Phytophthora blight of cucurbit

Phytophthora fruit rot of pumpkin

Poor pollination

Pythium cottony leak of cucumber

Root-knot galls on watermelon

Sclerotinia rot of melon

Squash mosaic of melon

Sticky strand test for bacterial
wilt on cut stems

Symptoms of gummy stem blight on
pumpkin leaves

Tobacco ringspot symptoms on cucumber

Zucchini yellow mosaic

Zucchini yellow mosaic of summer squash

Phytophthora blight on cucurbit fruit
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