Backyard chicken keepers don’t typically think of insects as predators, but certain flies within the Simuliidae family can be every bit as deadly to chickens as a fox or hawk. Also known as buffalo gnats and turkey gnats, these tiny, biting flies, which may attack victims in swarms, are a painful nuisance to humans, but a deadly threat to animals. Knowing when they attack is the key to guarding backyard chickens against their onslaught.
Despite their name, black flies can be a variety of colors, but you’ll know when they’re in your area as they make enjoying the out-of-doors impossible. The females inflict painful bites, drawing blood from their victims while injecting a toxic saliva cocktail that causes itching, swelling and worse.
WHEN & WHERE BLACK FLIES ARE PROBLEMATIC
During late spring and early summer, buffalo gnats can be found along rivers and streams, but may travel up to ten miles away therefrom. The female buffalo gnat lays its eggs in clear, moving water with temperatures in the high 50’s, low 60’s, which means after an especially rainy spring season, they can be expected to be a problem.
Female black flies bite their victims to extract blood to nourish their developing eggs. These blood feasts occur outdoors, usually after dawn and before dusk.
4 WAYS BLACK FLIES CAN KILL CHICKENS
1. Toxic Shock
After a black fly’s blood meal, toxins in the saliva injected into the bite site can cause anaphylactic shock in chickens, resulting in sudden death.
2. Blood Loss
Anti-coagulants in the black flies’ saliva can cause profuse bleeding and death in the victim by hemorrhage.
Swarming black flies can suffocate a chicken by obstructing its airway.
Bites from black flies can result in disease transmission; in particular, chickens are susceptible to contracting leucocytozoonosis from buffalo gnats, which may ultimately result in death.
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3 TIPS TO PROTECT CHICKENS FROM BLACK FLIES
Unfortunately, protecting chickens from buffalo gnats is not as straightforward as managing other fly populations in the chicken yard.
1. Keep chickens inside a dark coop or barn during daytime hours- at least in the evening prior to sunset and in the morning just after dawn. Black flies are daytime feeders that tend not to venture indoors.
2. Employ fans inside the coop; black flies dislike turbulent air.
3. Apply a poultry-safe product such as Elector PSP or Permectrin II to chickens during black fly season.
Contact your state’s Department of Agriculture Cooperative Extension Service agent for specific information about buffalo gnats in your area.
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