Agriculture: Corn Pest Management Guidelines

Invertebrates: Early Silk to Maturity

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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.

Text Updated: 06/16

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