Originally Posted by doczahi
How does it eliminates mature flies that come from neighbouring stables?
They won't, that's one of the reasons I use fly traps too. I have been using them for about 3-4 years. We have never had a year with 0 flies. We have farmers with cows near us, no stables. They have reduced the numbers drasticly from before we started. I get mine from Spalding labs. When I did the research they were the best price. They ship them to me every month during the fly season. Its a monthly release thing, not a one time application.
Edit: I release 10k fly predators every month for I think 6 months and the cost is about $200 for the season.
I used to use the feed on fly stuff. I just didnt feel right giving the horses more pesticide type feed.