Public Works and Environmental Services

Fairfax County, Virginia

CONTACT INFORMATION: Our administrative offices are open to the public by appointment only at this time. Please call or email 8 a.m. - 4:30 p.m., Monday - Friday

TTY 711

12000 Government Center Parkway
Suite 448 Fairfax, VA 22035

Sharon North,
Public Information Officer

August is Tree Check Month

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Asian longhorned beetle
The adult Asian longhorned beetle has black and white spotted wings, blue feet and long, black and white striped antennae. Credit: Dean Moorewood Health Canada,

Staff of the Urban Forest Management Division (UFMD) would like residents to keep an eye out for the Asian longhorned beetle (ALB) in their yards and when visiting county or state parks. Looking for ALB could be a fun game to be played with children who have been staying home due to the COVID-19 pandemic.

Next time you are on a walk with your children in your neighborhood or visiting a park, take a few minutes to look at the trees. Check the trees in your yard, too. The Asian longhorned beetle is a non-native, invasive insect that attacks and kills many species of shade trees, including its favorite, the maple.

All infestations of ALB have been found by residents who have reported their findings to state or county agencies.

Asian longhorned beetle checklist:

  • Check trees for large, almost dime-sized holes in the branches or trunk. You should be able to place a pencil into the hole about an inch deep. There may be broken branches with large tunnels on the inside of the wood
  • Look for large, black and white beetles with very long antennae, sometimes longer than the beetle’s body. ALB may ‘squeak’ when startled
  • Check pool filters for large, black and white spotted insects. ALB does not fly well and may drown in swimming pools

If you find ALB anywhere in Fairfax County:

  • Take a few good pictures of the insect, noting its identifying features: size, black and white spotted body, long, black and white striped antennae and blue feet
  • If you are able to capture the insect, place it in a jar or plastic bag and put it in the freezer
  • Send your pictures to the Fairfax County Urban Forest Management Division at or call the Urban Forester of the Day at 703-324-1770, TTY 711

More information about trees and tree care is available, or see the tree basics booklet in six languages published by the Fairfax County Tree Commission.

Fairfax Virtual Assistant