Potato, Irish-Grasshopper

Pest description and crop damage Many different grasshopper species live in areas near or where potatoes are grown, and most of these could occasionally feed on potatoes. A similar insect that sometimes invades and damages potato fields is the Mormon cricket (Anabrus simplex), which is actually a flightless katydid.

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Management-chemical control: HOME USE

  • azadirachtin (neem oil)-Some formulations are OMRI-listed for organic use.
  • Beauvaria bassiana-Some formulations are OMRI-listed for organic use.
  • carbaryl
  • cyfluthrin
  • deltamethrin
  • esfenvalerate
  • kaolin-Applied as a spray to foliage it acts to repel certain insect pests. Some formulations are OMRI-listed for organic use.
  • malathion
  • permethrin
  • plant essential oils (rosemary, etc.)-Some formulations are OMRI-listed for organic use.
  • pyrethrins (often as a mix with other ingredients)-Some formulations are OMRI-listed for organic use.
  • zeta-cypermethrin

Note: Pyrethroid insecticide (Group 3 in Tables 1-2) applications make aphid management more difficult and can lead to outbreaks of spider mites.

Management-chemical control: COMMERCIAL USE

Grasshoppers require control on potatoes only in the most extreme outbreak years or locations. Pyrethroid insecticide (Group 3 in Tables 1-2) applications make aphid management more difficult and can lead to outbreaks of spider mites.

See: