Japanese Beetles

Japanese Beetles Have Arrived in Shadow Grass Park!

According to the Colorado Department of Agriculture, the Japanese beetle was first introduced into Colorado in the early 1990s from nursery stock imported from the U.S. Midwest. In recent years, only a few Japanese beetles were found in the Shadow Grass Park development, but in the summer of 2025, they became widespread throughout our community. Homeowners are now spending time and money to control these invasive pests.

One of the best ways to address the Japanese beetle problem is to remove plants that Japanese beetles feed on and replace them with plants that attract fewer or no Japanese beetles.

In 2021, the Douglas County Extension collected observations of Japanese beetle feeding preferences from members of the gardening community. From this, they created a comprehensive list of Front Range Japanese beetle plant preferences. The HOA uses this helpful document as a guide when deciding which plants to add to our Pollinator Habitat.

Front Range Japanese Beetle Preference Observations

Additional Information About Controlling Japanese Beetles

Japanese Beetle
https://extension.colostate.edu/resource/japanese-beetle/

Prevention, Mitigation and Management of Japanese Beetle
https://ag.colorado.gov/plants/japanese-beetle-in-colorado/prevention-mitigation-and-management-of-japanese-beetle

Living with Japanese Beetles, Strategies for Reducing Populations, Plant Choice, and Plant Protection
https://denvergardeners.wordpress.com/2023/07/14/living-with-japanese-beetles/