I have about 1/2 acre area of locust sprouts between 1 and 6 feet tall. I bush hogged most of it last fall, and the new sprouts came back even stronger this spring. I think basal bark treatment is my best option, but I don't know for sure. Does anyone know of a ready to use, over the counter, pre mixed product I can buy in small quantities to control this? Any advice would be much appreciated.