Q.I have boxwoods covered in webs
Webs in boxwoods. Why and what do I do?
The webs are probably caused by spiders or tent caterpillars. These articles have more information: https://www.gardeningknowhow.com/plant-problems/pests/insects/spider-garden-pests.htm
https://www.gardeningknowhow.com/problems/pests/tent-worms-tent-caterpillar-home-remedy.htm
For another approach to identification and possible remedy, consult with your local county extension service. This link will help you locate one:
https://www.gardeningknowhow.com/garden-how-to/info/what-is-extension-service.htm