I have a Mimosa Tree that is four years old and just starting to bloom this year. I have noticed the last 2 years that when the leaves are in fulll bloom that i get these little brown flying bugs that strip the leaves clean. This year it is just loaded with the bugs and i found them in time before to much damage has been done. Sprayed with a commercial spray for trees and flowers, etc. Did help a bit but did not wipe them out. Does any one know what these bugs are and how to get rid of them. This tree is very special to me, given to me from my aunt who lives in oklahoma and I live in Kansas. thanks,