Indiana residents are being asked to keep an eye on local trees during National Tree Check Month and help prevent the spread of a destructive invasive pest — the Asian longhorned beetle (ALB).
The Asian longhorned beetle, known scientifically as Anoplophora glabripennis, has not been found in Indiana, but adult beetles are now emerging in nearby states. The closest known population is located in southeastern Ohio.
The beetle is a serious threat to trees, especially maples and other hardwood species. Residents are encouraged to watch for signs of infestation, including dime-sized round exit holes in trees, damaged bark, and sawdust-like material known as frass.
Adult Asian longhorned beetles are typically 1 to 1.5 inches long. They are black with white spots and have antennae that are longer than their bodies. After emerging from trees, the beetles feed, mate, and lay eggs, beginning a new cycle that can eventually kill affected trees.
The Indiana Department of Natural Resources is asking Hoosiers to inspect trees and report any unusual insects or signs of damage.
Reports can be made by contacting the Division of Entomology and Plant Pathology at DEPP@dnr.IN.gov, calling 1-866-NO-EXOTIC, or submitting a report online at on.IN.gov/report-pests.
When reporting a possible pest, residents should include their name, location, contact information, and details about the insect or tree damage observed.
Early detection is key to protecting Indiana’s trees from invasive species.
All photo’s courtesy of DNR.



