A. Perhaps the simplest, least expensive way to minimize flies is to eliminate their breeding places. Most flies gather around two common areas – places where manure accumulates and areas with feed spillage. Therefore, sanitation is essential when looking to control flies.
- Keep all housing clean, well-bedded, and dry; and regularly clean gutters, alleys, and pens.
- Move your calf hutches occasionally to allow the ground underneath to dry out.
- Keep manure storage areas as clean and dry as possible.
- Clean up areas with feed spillage and repair and clean out leaking waterers.
- Enclose feed areas if possible, and always seal the edges of bunks, silos, etc.
To control surging adult fly populations, insecticides should be used.
- Save money by identifying what specific fly species you’re dealing with and selecting the correct insecticides to effectively control that species. Don’t expect a pour-on that controls horn flies and face flies to effectively control stable flies or house flies.
Some farms have seen results by using biological control and maintaining a population of beneficial wasps to minimize flies. However, biological controls should be implemented before or very early in the fly season.
A combination of physical, chemical, and biological controls will help you maintain a low level of flies this summer.