If you live in MI, IN, OH, KY, etc you need to check into this. I have been treating for Emerald Ash Borer now for a year and it is a big $$$$$ maker. I am going to be putting a lot of effort into it this winter and have some serious money to make! Went to a seminar today and it has me pumped!!!!! We need to be educating our clients and let them know how important this application is. Contact Arbor Jet and they can get you all the details you need for TreeAge. It is very easy to do...and very little overhead and there are a ton of trees with very few people treating them! That is a great combination to any good add on service!