Lymantria dispar asiatica moths gather on a building in the port area of Olga, Primorsky Krai, Russia. In response to the possibility of LDA moths riding on ships bound for North America, a complex monitoring and management program run by officials in both Russia and North America has been able to prevent this pest from establishing in North American forests. (Image originally published in Mastro et al 2021, Journal of Integrated Pest Management)