Pasture and grass hay-Fly

Face fly (Musca autumnalis)

Horn fly (Haematobia irritans)

Pest description and damage Flies annoy livestock and compromise weight gain.

Management-chemical control

  • diflubenzuron (Dimilin 2L, 25W) at 0.03 lb ai/A. PHI 1 day for cutting. REI 12 hr. Apply Dimilin to control fly emergence from cattle manure. Do not exceed 0.03 lb ai/A (0.5 oz ai/A) per cutting or 0.09 lb ai/A (1.5 oz ai/A) per year.
  • malathion (Fyfanon ULV) at 0.48 to 0.62 lb ai/A. PHI 0 days. REI 12 hr. Limit 1 treatment per cutting.
  • permethrin (Pursuit 4-4 ULV) -Consult label for ground or aerial ULV application.

See also: