This message received via email: We have an old tree we call the snowball tree (big round white flowery balls at this time of the year). Anyway, it has got tons of small worms/bugs that are completley eating the leaves and leaving them lacy. The worms seems to start at the bottom of the tree and eat their way to the top of the tree. We were wondering if we can buy some sort of chemical(?) or something that we can put on the base of the treee or the leaves to stop and kill the worms. I hope my description is fairly understandable.