Fire. It's the only way to solve that problem.Not quite as bad as this:
These are Western tent caterpillars...Look more like gypsy moths
Spongy Moth – Profile and Resource | Invasive Species Centre
The Ldd moth is native to Europe, and is established in northeastern U.S and eastern Canada. The larvae feed on crown foliage on a wide range of hardwood.www.invasivespeciescentre.ca