Japanese Beetle

Japanese Beetle

Japanese beetles have become established in the Denver metro region in Colorado. The adult feed on over 300 types of plants. The larva feed on the roots of plants and can be very harmful to sod and lawns.

CSU Extension Fact Sheet

Japanese Beetle Adult

Japanese beetle adult on leaf.

Japanese Beetle Citizen Science Project

Since 2006, Japanese beetle has spread along the Front Range and is now well established. Jeffco Invasive Species Management is supporting a statewide effort to better understand this insect’s habits. 

If you see Japanese beetle please fill out this online form so that we can track early emergence and document their preferred Colorado hosts.

Information will be shared with state and local government agencies.

Japanese Beetle Reporting Form