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Corn

Other pests you may see:

On this page
  • Armyworms
  • Corn earworm
  • Cucumber beetles
Names link to additional information on identification and management.
Click on photos to enlarge
Larva of the armyworm.
Armyworms
Identification tips: Black with a white or red stripe; eggs are covered with a gray, cottony material, found on weeds near field; look for holes in leaves and girdled branches.
Corn earworm larva feeding on corn.
Corn earworm
Identification tips: Brown, pink, or green worms 1-2 inches long; usually feed on and within ear; look for excrement at ear tip.
Western spotted cucumber beetle.
Cucumber beetles
Identification tips: Yellow with black spots or black with white stripes; larvae hatch in soil and feed on roots; adults feed on corn leaves, tassels, and silks.

Statewide IPM Program, Agriculture and Natural Resources, University of California
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Agriculture and Natural Resources, University of California

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