Do cows bring horse flies?

[weg]

I live in town.There is a 5 acre piece of land next to me that was setting idle,so a farmer put cows on it.I use to see maybe 1 or 2 horse flies per summer,but now they are thick.We had about 7 or 8 of them after us last evening.They came as the cows approached and most of them left with the cows too.If they are from the cows,can the farmer do something to keep them down? I have no experience of any kind with cows.weg

[ksfarmer]

Horse flies do torment cattle (and horses and people). However having cattle in the neighborhood doesnt cause horseflies. For some reason, this year is seeing a larger number of them than usual in our area and I suspect in yours. Must have been a good year for them to hatch.

[ksfarmer]

sorry about that