www.fs.usda.gov – 12-08-2022
The Asian longhorned beetle has flexibility in its life history, putting it in a good position to successfully invade a broad range of locations and climate conditions.

Forest Service scientists have developed a new climate-driven phenology model which demonstrates that few locations with host trees in the U.S. or Europe are safe from potential invasion by this insect.
 
Fiscal Year 2017
Research Station Northern Research Station
Research Unit(s) Ecology and Management of Invasive Species and Forest Ecosystems
Principal Investigator(s) R. Talbot Trotter, III Melody Keena
State(s) Connecticut
Summary
Asian longhorned beetle infestations have been found in urban and suburban trees or forested areas as far north as Helsinki, Finland, and as far south as Bethel, Ohio. This beetle can adjust the number of years the larvae take to complete development, allowing it to adapt to a broad range of local climate conditions. For instance, development can be completed in less than 2 years in warm locations, or it can take as long as a decade in colder climates. Forest Service scientists developed a new climate-driven phenology model that predicts the number of years required for the beetle to complete development and the timing of adult emergence for any location so that management actions may be adapted as needed. This model also has been used in conjunction with host availability to predict where in the U.S. this beetle can develop and how long it will take to complete development. This new information highlights how potentially invasive this insect can be, and the great urgency for finding and eradicating new populations, particularly in warmer areas where the potential for population increase is higher due to more rapid larval development.