The HorseFlyNet is a barrier to flies that is cost effective and environmentally safe. Insects and related pests have a significant financial impact on the horse industry. Flies can damage horses directly and indirectly–they suck blood and are a potential vector of disease. The HorseFlyNet is a screen that can be hung in run-in sheds, over windows, and in the doors of barns. It also can be installed in horse trailers. HorseFlyNets are easy to install, translucent, rain and rot resistant, and inexpensive. They are horse friendly and reduce UV rays by 80%