Pests

Insects are the most common cause of garden damage. Our list includes the majority of garden nuisances in North America.

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  Aphid

  These small, soft-bodied, pear-shaped insects cluster densely on tender new growth and the undersides of leaves to suck plant juices.
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  Armyworm

  Techniques for prevention and control.
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  Asparagus Beetle

  These quarter-inch beetles and their larvae feed on young asparagus spears; damaged spears often develop blemishes and a shepherd’s crook appearance.
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  Bean Leaf Beetle

  Techniques for prevention and control of bean leaf beetles.
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  Blister Beetle

  Techniques for prevention and control.
• 
  Cabbage Looper

  Techniques for prevention and control.
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  Cabbageworm

  Techniques for prevention and control.
• 
  Carrot Rust Fly

  Techniques for prevention and control.
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  Celery Leaftier

  Techniques for prevention and control of this caterpillar that chews on leaves of celery, beets, and other crops.
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  Colorado Potato Beetle

  Techiques for prevention and control.
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  Corn Earworm

  Techniques for prevention and control.
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  Corn Rootworm

  Techniques for prevention and control.
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  Cucumber Beetle

  Techniques for prevention and control.
• 
  Cutworm

  Techniques for prevention and control.
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  Earwig

  Techniques for prevention and control.
• 
  European Corn Borer

  Techniques for prevention and control.
• 
  Fire Ant

  Techniques for prevention and control.
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  Flea Beetle

  Techniques for prevention and control.
• 
  Four-Lined Plant Bug

  Techniques for prevention and control.
• 
  Fruit Fly

  Techniques for prevention and control.
• 
  Fungus Gnat

  Fungus gnats look like fruit flies, hovering over the soil in houseplants or seedlings. It's easy to get them under control.
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  Grasshopper

  Techniques for managing grasshopper populations in the garden.
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  Harlequin Bug
• 
  Japanese Beetle

  Techniques for prevention and control.
• 
  Leafhopper

  Techniques for prevention and control.
• 
  Leafminer

  Techniques for prevention and control of leafminer larvae which can hurt leafy crops like spinach and lettuce.
• 
  Mealybug

  Mealybugs suck plant juices from fruit crops, potatoes, and many kinds of houseplants.
• 
  Mexican Bean Beetle

  Techniques for prevention and control.
• 
  Nematode

  Techniques for prevention and control.
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  Pea Weevil

  Techniques for prevention and control.
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  Pepper Maggot

  Techniques for prevention and control.
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  Pickleworm

  Techniques for prevention and control.
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  Root Maggot

  Techniques for prevention and control.
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  Root Weevil

  Techniques for prevention and control.
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  Scale

  Techniques for control.
• 
  How to Control Slugs

  Techniques for prevention and control of slugs.
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  How to Control Snails

  Techniques for prevention and control.
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  Spider Mite

  Techniques for prevention and control.
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  Squash Bug

  Techniques for prevention and control.
• 
  Watch: Squash-Vine Borer

  Techniques for prevention and control. Includes a video on how to remove squash-vine borers.
• 
  Stinkbug

  Techniques for prevention and control of stunkbugs which suck plant juices from leaves, flowers and fruits in the garden.
• 
  Sweet Potato Weevil

  Techniques for prevention and control of the sweet potato weevil.
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  Tarnished Plant Bug

  Techniques for prevention and control.
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  Thrip

  Techniques for prevention and control.
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  Tomato Hornworm

  Techniques for prevention and control.
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  Whitefly

  Techniques for prevention and control for Whiteflies.
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  Wireworm

  Techniques for prevention and control.