Vegetable Problems Caused by Insects

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Updated: June 28, 2021

How to Identify, Prevent, and Manage Plant Problems

How to ID, prevent, and manage plant problems in Maryland
no lawn landscape
Updated: July 22, 2021

Imported Cabbageworm - Vegetables

Large holes in the leaves of cabbage, broccoli, Brussel sprouts, cauliflower, collards, kale, turnip, and radish could be due to feeding by cabbageworms.
Imported cabbage worm with frass
Updated: June 28, 2021

Squash Vine Borer - Vegetables

Dead, wilting squash plants
Squash vine borer and damage
Updated: June 8, 2021

Slugs and Snails - Vegetables

Large ragged holes in leaves may be caused by slugs and snails.
Gray garden slug (Deroceras reticulatum)
Updated: May 25, 2021

Potato Leafhopper - Vegetables

Puckered, curling leaves may be an indication of leafhopper insects feeding on vegetable plants.
Leafhopper nymph
Updated: May 17, 2021

Stink Bugs - Vegetables and Fruits

Piercing and sucking creates superficial spots (white on young fruit or yellow on mature fruit) known as "cloudy spot" on tomato and other fruits.
bright green stink bug
Updated: May 17, 2021

European Corn Borer - Vegetables

Borers make pinhole entrances, exuding sawdust-like frass. The foliage above bored stems may wilt or break. Borers enter peppers near the stem and feed on the seed core.
European corn borer moth -  Photo Frank Peairs, Colorado State University,
Updated: May 17, 2021

Aphids - Vegetables

How to manage aphids on vegetable plants in a home garden
Aphids on leaf underside
Updated: May 17, 2021

Corn Earworm - Vegetables

The corn earworm or tomato fruitworm feed on the corn silk but eventually borrow directly into the tips of developing ears of corn.
Corn earworm
Updated: May 17, 2021

Spider Mites - Vegetables

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.
Spider mites