The Box Tree Moth: An Invasive Species Severely Threatening Buxus Natural Formation in NW Italy

(1) The box tree moth (BTM), Cydalima perspectalis Walker, represents one of the recent examples exotic insect pests native to Asia accidentally introduced in Europe by nursery trade. In Europe, BTM develops on Buxus sempervirens L., causing significant damage ornamental and natural plants. (2) Basic aspects biology were investigated at three sites NW Alps, where B. occurs rocky slopes, forming a protected habitat. 2019–2021, we evaluated: (i) seasonal flight activity with sex pheromone traps, (ii) fecundity effects food egg load, (iii) potential adaptation secondary host plants, (iv) recruitment enemies. (3) Our results revealed presence two generations per year. number mature eggs increased fed adults was higher females first generation. No evidence shift plants found either laboratory or conditions, no occurrence enemies recorded, except for pupa tachinid Pseudoperichaeta nigrolineata. (4) findings provide valuable information address timely plan management strategies preserve as an essential component rare forest ecosystems.