Breella,
I use Skin so soft and vinegar diluted with water. Do you find your concoction effective?
edited to say I should have read all the posts before posting. Read a bit further down lapeerians addition of vinegar as well.
I have used it on my horses for over a year, I have to use a little more of it than I would a normal fly spray but I hate the idea of using pesticide chemicals on them so it is worth it for me.