Using a new type of trap, WSDA researchers tagged several captured hornets with radio trackers, which they used to lead them to the nest. The cavity of a tree found on private property was housing the nest, and WSDA members saw dozens of hornets entering and leaving the tree.
Asian giant hornets typically nest in the ground but can occasionally be found nesting in dead trees.
The owner of the property gave WSDA permission to eradicate the nest and to remove the tree if necessary, the WSDA said. WSDA members plan to remove the tree on October 24.
The WSDA has setup a network of traps around the state, and entomologists have been tracking sightings of Asian giant hornets in an effort to find and eliminate any nests.