National Invasive Species Information Center
U.S. Department of Agriculture

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  • Priority Species: Emerald Ash Borer

    • Washington State Recreation and Conservation Office. Washington Invasive Species Council.

  • State Asks Public to Check Trees for Invasive Pests this August

    • Aug 6, 2024

    • Washington Invasive Species Council.

    • Washington state agencies are asking for your help to check your trees for signs and symptoms of invasive insects. Damaging invasive insect species, such as spotted lanternfly, longhorned beetles, and emerald ash borer, are emerging in their adult form. ate summer is often the peak time for these invasive insects to emerge from trees in their adult stage. If you see or suspect you see an invasive insect, report a sighting.