Biting pests

Horse flies & deer flies: identification & horse fly control

Horse and deer flies breed in wet soil and are strong fliers, so control focuses on traps, habitat drainage and treating shaded resting areas near the yard.

Large horse fly with iridescent green eyes resting on a fence rail

How to identify horse flies & deer flies

What it looks like
Large stout flies with huge iridescent eyes; deer flies have patterned wings.
Size
1/2 to 1.25 inches
Where you'll find it
Near ponds, streams, marshes, pastures and shaded yard edges.

Signs of horse flies & deer flies in your home

  • Painful bites on the head and shoulders
  • Flies circling persistently outdoors
  • Bites near water or livestock

Horse flies & deer flies questions homeowners ask

Why do horse fly bites hurt so much?

Females slice the skin with blade-like mouthparts instead of piercing it, which is why the bite bleeds and stings.

Horse fly control by city

Local technicians handle horse flies & deer flies in every market below — pick your city for neighborhood coverage, seasonal notes and a free quote.

Related biting pests pests