I have asked this question once before and did not see it come up so If it is duplicated please forgive. In regards to the short spots in the manes. We have hundreds of oak trees on and around our property and with them come chiggers. Now I never knew there were chiggers in Oregon until we moved to our new place that had oak trees, but there are and they live in the oak trees. That being said, my horses get chewed to pieces no matter what I put on them, so they itch constantly. They scratch their manes, tails, and every other parts of their bodies on the trees and fence post. My mare had a large white frost streak in her main which she has worn off to nothing. I saw where MTG was suggested to use. What is MTG and where can I find it. Is that it's real name or is that initials for the product. Any help would be greatly appreciated.