The final step, if necessary, is to implement a sustainable system to control the pests. Stable flies and house flies are the two main species of pest flies found in feedlots. And where there are stable flies, there are house flies because they breed in the same areas. Although house flies are usually never more than just a nuisance, a fly infestation can lead to public relations problems with your neighbors. There are many similarities between stable flies and house flies that makes them difficult to distinguish.
Stable flies are blood-feeders.
Their mouthparts form a bayonet that projects out in front of the head and is used to bite the cattle. House flies are not blood-feeders and do not have this bayonet. Floate advises producers to continuously be on the watch for pest problems. Although flies on the cattle may indicate a problem, confirmation comes when the animals are visibly irritated by the pests. Flies breed in moist areas with rotting organic material.