I hear what you’re saying, the product in question is XenTari which is a bacteria that targets the box caterpillars and as a biological solution (not chemical) the theory is it’s harmless to other humans, birds and bees but yeah, still killing stuff I guess.
Wow, that’s a belter. My folks have a similarly massive one that pretty much collapsed a fence in the recent storms.
Gave the Buxus a haircut and moth spray today.