It seems that every summer, I head for the local feed supply store to see what's new in mosquito sprays for horses. The mosquitoes are so thick at dusk and dawn here that you dare not walk outside and open your mouth unless you're looking for a buggy meal. My poor horses pace, swish and rub--and nothing I've tried brings much relief. Not only are mosquitoes annoying they carry diseases like EEE and WNV. We've tried fly sprays, fabric softener sheets, homemade concoctions without success. Bonnets and fly sheets help somewhat, but bonnets aren't safe to leave on at night and sheets are unsafe for mares with foals at their sides. No barn is safe either, unless hermetically sealed.
So what do you do to protect your horses from mosquitoes? Have you discovered a sure fire method or product you'd be willing to share?