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.
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.
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.