I have 3 huge non bearing Mulberry trees in my front yard that I enjoy for the shade in the summer.

I know the worms are a food source for birds but there aren't enough birds in Texas to eat all these suckers! They absolutely decimated my trees last year to the point that I had no leaves left by mid summer, so they proceeded to strip my rose bushes and whatever other kind of foliage they could find to snack on clean!

I have already read through several posts concerning this problem but I need to know if there is anything I can do from the ground to kill these nasty pests? My trees are very tall. I can't climb them or find a ladder tall enough to reach the upper parts where these worms get to and a sprayer wouldn't reach up that far. Pruning is not really an option either as I may as well cut the whole tree down if I have to prune a branch every time I see a web.

Any help would be appreciated, I really am tired of losing my shade.