Clover hay-Grasshopper

Includes several species, especially Melanoplus spp.

Pest description and crop damage Both young and adult grasshoppers damage by feeding on leaves.

Management-chemical control

  • chlorantraniliprole (Coragen) 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.
  • zeta-cypermethrin (Mustang) at 0.035 to 0.05 lb ai/a. PHI 3 days cutting and grazing; 7 days for seed. REI 12 hr. Do not apply more than 0.05 lb ai per cutting or 0.15 lb ai per season. Retreatment interval 7 days.