Cucumbers

These beetles chew holes in leaves, flowers, and fruit. They are a common pest of cucumbers and other cucurbits.

Spider mites are small arthropods typically found on the undersides of leaves during hot weather. They cause very tiny white or yellow spots on leaf surfaces and produce strands of silk webbing.

Symptoms of downy mildew include tan to dull yellow angular lesions (spots) that enlarge.

Specific virus diseases are difficult to distinguish and produce a wide range of symptoms including stunted, slow-growing plants, twisted, crinkled, cupped, or deformed leaves, and leaf discoloration (yellow mottling and mosaic patterns, ringspots, and dark-green banding).

Powdery mildew is a common fungal disease that grows as a white powdery coating over the surfaces of leaves. It has a wide host range.

Bacterial wilt can cause sudden wilting of cucumbers, melons, and summer squash.

Sometimes an odd-looking squash or other vegetable shows up in the backyard garden. There a few explanations for that.

Twisted or deformed squash and other vegetables can be the result of insufficient pollination.