If you get Deer Tracking Magazine I wrote an article for the summer 2012 edition. It's on using cattle rubs for insect control. I've had amazing results using them since 2009 to repel insects from the animals. I don't sell the rubs or get a commission. I'm just giving you free information on a way I've found to reasonably control insects on my deer. You can view full information on how to use them, where to get them and how they work. Check my Facebook Notes on Charles DeerMan Black at the following link to see more.