The hornets typically nest in the ground, so the discovery of the nest about 8 feet up in the tree cavity was unexpected, the agency's managing entomologist, Sven Spichiger, said during a press briefing Friday afternoon.

The property owner gave the agency permission to eradicate the nest and, if necessary, remove the tree, officials said. The agency was unable to eliminate the nest Friday due to bad weather and planned to try again the next day using a vacuum, officials said.

On Saturday, the agency updated that the removal \"appears to have been successful,\" and that \"numerous specimens\" were vacuumed out of the nest.

Got ‘em. Vacuumed out several #AsianGiantHornets from a tree cavity near Blaine this morning. Further details will be provided at a press conference on Monday. Staff not available for interviews before then. pic.twitter.com/31kgAUuJd0

— WA St Dept of Agr (@WSDAgov) October 24, 2020

The tree will be cut down to remove newborn hornets and to see if any queens have left the nest, The Associated Press reported.

The agency said it will share more details about the extraction on Monday.

Spichiger had said Friday they expected to extract anywhere from 100 to 200 hornets from the tree based on findings from thermal cameras.

\"We will be jamming foam into the entrance and Saran-wrapping it so that we can control the release of hornets from the nest,\" he said. \"This will allow us to do the vacuum extraction in a little bit more controlled environment.\"

The first confirmed detection of an Asian giant hornet in the U.S. was in Whatcom County, Washington, in December, with two verified reports of the insect near Blaine. Two were also discovered in British Columbia, Canada, last fall.

Since then, 20 hornets have been caught in Whatcom County, according to the Washington State Department of Agriculture.

Spichiger said there is a \"very good possibility\" there is more than just this one nest in the area, given the evidence they have so far. The agency plans to keep the traps up through the end of November. \"That should tell us a little more,\" he added.

\"PHOTO:A
Washington State Department of Agriculture
PHOTO:A radio tracking device is attached to a hornet. Entomologists discovered the first Asian giant hornet nest in the U.S. on a property in Washington on Oct. 22.
>

Hundreds of traps have been set throughout Washington by state agriculture department staff, scientists and others, in an attempt to eliminate the pest. The world's largest hornet, at 2 inches, the apex predator can kill an entire honey bee hive in just hours. With bee populations already in decline in the U.S., in what's known as \"colony collapse disorder,\" the hornets pose another threat to the ecosystem if they become established over several years.

\"Unfortunately, managed honeybees we use here have no natural defense against them,\" Spichiger said. \"Stopping this cold is very crucial.\"

\"You should be cautiously optimistic that we're still only talking about Whatcom County at this point,\" he later said.

For humans, the hornet's sting is more painful than that of a typical bee or wasp, and people are advised to use caution near the insects and not attempt to remove or eradicate nests themselves.

Native to Asian countries including China and Japan, it's not known how the hornets arrived in the Pacific Northwest, though through international cargo is one theory.

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