1. Insect
  2. Hay and Pasture Crops
  3. Clover Hay Pests

Clover hay-Grasshopper

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Image related to Clover hay-Grasshopper
Redlegged grasshopper
Melanoplus femurrubrum DeGeer
Egg(s) on host
© Ken Gray Insect Image Collection
Image related to Clover hay-Grasshopper
Migratory grasshopper
Melanoplus sanguinipes Fabricius
Female adult
© Ken Gray Insect Image Collection

Includes several species, especially Melanoplus spp.

Pest description and crop damage Both young (nymphs) and adult grasshoppers feed on clover leaves, resulting in reduced leaf area and potential crop loss. Severe infestations cause stunting and affect hay quality.

Management-chemical control

  • azadirachtin (Neemix 4.5) at 0.015 to 0.021 lb ai/A. REI 4 hr. PHI 0 days. OMRI-listed for organic use.
  • Beauveria bassiana GHA (Mycotrol ESO, BoteGHA ES) at 0.25 to 1 quart in 5 to 100 gal water/A. Adjust water volume to ensure good coverage but avoid runoff. PHI 0 days. REI 4 hr. OMRI-listed for organic use.
  • chlorantraniliprole (Coragen, Prevathon) at 0.026 to 0.065 lb ai/A. PHI 0 days. REI 4 hr. Do not exceed 0.2 lb ai or 4 applications per season.
  • malathion ULV (Fyfanon ULV) at 0.61 lb ai/A. PHI 0 days. REI 12 hr. Limit 2 treatments per cutting. Retreatment interval 14 days.
  • malathion (Drexel Malathion 5EC) at 1 to 1.25 lb ai/A. PHI 0 days. Limit 2 treatments per cutting. Retreatment interval 14 days. REI 12 hr.