"The box tree moth (BTM) was confirmed for the first time in North America in Ontario, Canada in 2018. Box tree moth can have up to five generations per year, which has allowed it to establish quickly and spread rapidly across Europe. BTM larvae eat the foliage of all species of boxwood (Buxus spp.), a broadleaf evergreen shrub planted widely across
Canada and the U.S. Help protect boxwood from this emerging pest; monitor for box tree moth and report it if you find it."
Fresh from firstdetector.com: