We have a mare with white socks, the fly spray only lasts about 15 minutes, so after I wash her legs, I do this three times a week, I wrap them with vet wrap, then coat the whole thing with swat, I use the clear swat. We say she has her summer braclets on. My daughter has a grey mare right now that has rubbed sores on her muzzle from knats, I will need to put swat on her too. The bugs are so bad this year and are also distroying our garden, usually by this time of year I'm canning away for winter, but not this year. They are bad in the house too, I need to spray every other day because of stupid ants, and not the usual ants that go after sweets, but ants that eat anything. Also fruit flies are driving me crazy in the bath room of all places. I hate summer almost as much as I hate winter, and I so hate bugs.