Barbara M. Linde 
Tent Caterpillars [PDF ebook] 

After the tent caterpillar hatches from its egg, it’s hungry for leaves. It may emerge with 350 other caterpillars, so a ravenous colony can mean big trouble for a tree. Tent caterpillars are named for the silky, tent-like homes they weave. Their tents function as shelters from the elements as well as predators in the weeks before the caterpillars turn into moths. This book discusses the tent caterpillar life cycle, damaging habits, and habitats as well as how people try to fight them to save their trees.