Corn Insects: Below Ground

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CoverGeorge W. Thomas
Department of Entomology

The symptoms, causes and appearance of various corn root diseases are covered in this publication. It features 12 full-color photos of damaged roots and the insects that cause the damage. The coordination of pictures with written descriptions is designed to help you make quick identifications in the field.


  • Goose-neck symptoms
  • Billbug
  • Black cutworm
  • Corn root aphid
  • Corn rootworm adults
  • Corn rootworm larvae
  • Grape colaspis
  • Seed corn beetle
  • Snout beetles
  • Weevils
  • White grub
  • Wireworm


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