Very disappointing. Jonathan came to spray our Ash trees in the summer of 2013 guaranteeing the work for 2 years. After one of our large Ash trees continued to show damage from the EAB, after just 1 year, I eventually got him on the phone, and asked him to come back and spray, which he agreed to do. I never could get him on the phone again, or get him to come to the house to even look at the trees. Will not use him again.