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.

See also: