Skip to Main navigation Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension

Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Tomato > Chewed leaves/holes in leaves

Print Icon Email Icon Share Icon

Tomato > Leaves > Chewed leaves/holes in leaves

1 of 4
  • Image: Flea Beetles 1
  • Image: Flea Beetles 2
  • Image: Flea Beetles 3

Flea Beetles

  • Damage occurs during spring
  • Small BB-sized pits or holes are chewed into leaves
  • 1/16th inch beetles
  • Small black beetles can jump
2 of 4
  • Image: Slugs 1
  • Image: Slugs 2


  • Active spring and summer
  • Can chew holes in tomato fruits
  • Chews irregular holes in leaves; can completely defoliate plants
  • Feeds during night and typically not seen during day
  • 1/4 to 2 inches long
  • Soft-bodied and typically brown or gray
  • More information on Slugs...
3 of 4
  • Image: Tomato Hornworms 1
  • Image: Tomato Hornworms 2

Tomato Hornworms

  • Damage occurs July through September
  • Chews holes in tomato fruit
  • Chews leaves, can completely defoliate plants
  • Caterpillar grows up to 4 inches long
  • Caterpillar is green with white marking and a conspicuous 'tail' on the tip of the abdomen
  • More information on Tomato Hornworms...
4 of 4
  • Image: Cutworms 1
  • Image: Cutworms 2


  • Damage occurs during spring and summer
  • Stem chewed within 1 inch of base of plant (occurs during spring)
  • Can chew holes in leaves (spring and early summer)
  • Can chew holes in tomato fruit (summer)
  • Cutworms are grayish or brownish and up to 2 inches long; typically found during day hiding in soil

Don't see what you're looking for?

  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy