https://wildlife.ca.gov/Conservation/Invasives/Action-Week
Presented by Dr. Siavash Taravati
Formosan subterranean termites are one of the most destructive urban pests in the world and also the only termite species listed in the ‘100 of the World’s Worst Invasive Alien Species.’ Endemic to East Asia, this termite is now established in many tropical and subtropical regions, including across the American South. Annually, its infestation costs more than $4 billion in control measures and damage repairs of structures in the U.S.
Only a handful of FST infestations have been identified in California since 1992. However, once FST is established in an area, there have been no records of successful eradication anywhere in the world. A major reason why the Formosan subterranean termite is so destructive is the enormous size of their colonies, which can reach millions of individuals, versus most native subterranean species that reach a few hundred thousand individual termites per colony. Also, unlike California native subterranean termite species, FST can attack and kill live trees and plants.