Invasive forest pests are continually being introduced. Invasions are mediated by many factors, such as pest and host genetic variability, climate, number of introductions, and pest life history.
Some non-native pests are relatively harmless or threaten a single tree species (like the american chestnut vs. chestnut blight). Others, like the emerald ash borer threaten an entire tree genus. More recently,Laurel wilt disease (LWD), which is carried by redbay ambrosia beetle (RAB), is caused by the fungal pathogen Raffaelea lauricola, are threatening an entire plant family (Lauraceae).
We study the ecological factors that mediate introduction, establishment, and spread of invasive forest pests such as these.