Washington State Noxious Weed Control Board's website on tree-of-heaven
County Noxious Weed Control Board's website on contact information for your tree-of-heaven control questions
Brochure on tree-of-heaven and spotted lanternfly PDF
County Noxious Weed Control Board's website on contact information for your tree-of-heaven control questions
Brochure on tree-of-heaven and spotted lanternfly PDF
WSDA NEWS
10/11/2021 - Tree-of-heaven reports safeguard state from another invasive pest Blog
LOCAL NEWS
09/29/2021 - State Officials Ask for Public’s Help in Tracking the Invasive Tree-of-Heaven Washington Recreation and Conservation Office