Invasive 'murder hornets' are wiped out in the US, officials say

SEATTLE (AP) — The world's largest hornet, an invasive breed dubbed the “murder hornet” for its dangerous sting and ability to slaughter a honey bee hive in a matter of hours, has been declared eradicated in the U.S., five years after being spotted for the first time in Washington state near the Canadian border.

The Washington and U.S. Departments of Agriculture announced the eradication Wednesday, saying there had been no detections of the northern giant hornet in Washington since 2021.

The news represented an enormous success that included residents agreeing to place traps on their properties and reporting sightings, as well as researchers capturing a live hornet, attaching a tiny radio tracking tag to it with dental floss, and following it through a forest to a nest in an alder tree. Scientists destroyed the nest just as a number of queens were just beginning to emerge, officials said.

“I’ve gotta tell you, as an entomologist — I’ve been doing this for over 25 years now, and it is a rare day when the humans actually get to win one against the insects," Sven Spichiger, pest program manager of the Washington State Department of Agriculture, told a virtual news conference.

The hornets, which can be 2 inches (5 cm) long and were formerly called Asian giant hornets, gained attention in 2013, when they killed 42 people in China and seriously injured 1,675. In the U.S., around 72 people a year die from bee and hornet stings each year, according to data from the National Institutes of Health.

The hornets were first detected in North America in British Columbia, Canada, in August 2019 and confirmed in Washington state in December 2019, when a Whatcom County resident reported a specimen. A beekeeper also reported hives being attacked and turned over specimens in the summer of 2020. The hornets could have traveled to North America in plant pots or shipping containers, experts said.

DNA evidence suggested the populations found in British Columbia and Washington were not related and appeared to originate from different countries. There also have been no confirmed reports in British Columbia since 2021, and the nonprofit Invasive Species Centre in Canada has said the hornet is also considered eradicated there.

Northern giant hornets pose significant threats to pollinators and native insects. They can wipe out a honey bee hive in as little as 90 minutes, decapitating the bees and then defending the hive as their own, taking the brood to feed their own young.

The hornet can sting through most beekeeper suits, deliver nearly seven times the amount of venom as a honey bee, and sting multiple times. At one point the Washington agriculture department ordered special reinforced suits from China.

Washington is the only state that has had confirmed reports of northern giant hornets. Trappers found four nests in 2020 and 2021.

Spichiger said Washington will remain on the lookout, despite reporting the eradication. He noted that entomologists will continue to monitor traps in Kitsap County, where a resident reported an unconfirmed sighting in October but where trapping efforts and public outreach have come up empty.

He noted that other invasive hornets can also pose problems: Officials in Georgia and South Carolina are fighting yellow-legged hornets, and southern giant hornets were recently detected in Spain.

“We will continue to be vigilant,” Spichiger said.

FILE - Washington State Department of Agriculture workers, wearing protective suits and working in pre-dawn darkness illuminated with red lamps, vacuum a nest of Asian giant hornets from a tree Saturday, Oct. 24, 2020, in Blaine, Wash. (AP Photo/Elaine Thompson, File)

FILE - A Washington state Department of Agriculture worker holds two of the dozens of Asian giant hornets vacuumed from a tree Oct. 24, 2020, in Blaine, Wash. (AP Photo/Elaine Thompson, File)

FILE - Washington State Department of Agriculture entomologist Chris Looney, wearing a protective suit, fills a tree cavity with carbon dioxide after vacuuming a nest of Asian giant hornets from inside it Saturday, Oct. 24, 2020, in Blaine, Wash. (AP Photo/Elaine Thompson, File)

FILE - Sven Spichiger, Washington state Department of Agriculture managing entomologist, displays a canister of Asian giant hornets vacuumed from a nest in a tree behind him on Oct. 24, 2020, in Blaine, Wash. (AP Photo/Elaine Thompson, File)

FILE - Sven Spichiger, Washington state Department of Agriculture managing entomologist, displays a canister of Asian giant hornets vacuumed from a nest in a tree behind him Oct. 24, 2020, in Blaine, Wash. (AP Photo/Elaine Thompson, File)

FILE - A Washington state Department of Agriculture worker holds two of the dozens of Asian giant hornets vacuumed from a tree Oct. 24, 2020, in Blaine, Wash. (AP Photo/Elaine Thompson, File)

FILE - A Washington State Department of Agriculture worker displays an Asian giant hornet taken from a nest, Oct. 24, 2020, in Blaine, Wash. (AP Photo/Elaine Thompson, File)

SANTA CLARA, Calif. (AP) — The San Francisco 49ers are opening the practice window for star linebacker Fred Warner with the hope that he could return if the team reaches the NFC title game.

Warner has been out since breaking and dislocating his right ankle in a loss at Tampa Bay on Oct. 12, with coach Kyle Shanahan initially describing it as a season-ending injury.

But Warner has been rehabbing since then and even was able to run on a side field last week during practice. Now he will be back officially at practice as the 49ers prepare to play Seattle in the divisional round on Saturday night and could return if San Francisco wins.

“We’re not doing much so he’ll walk through out there with us today and things like that, but hoping he can be ready for next week,” Shanahan said Tuesday.

Warner's presence on the practice field even for a walkthrough provided an emotional lift for the 49ers.

“For someone who really set the standard here, I would do anything to play with him again this year,” defensive tackle Kalia Davis said. “We want him back out there.”

Eric Kendricks is currently manning Warner's spot at middle linebacker after backup Tatum Bethune got hurt but wasn't ready to talk about what Warner's possible return would do for the team.

“We’re aren’t going to talk about next week, right? We’ve got Seattle,” Kendricks said. “We’ve got to beat Seattle. Let’s pump our brakes. We have to beat Seattle this week. .. This is what meaningful football is all about.”

The 49ers have made it this far despite losing their top two defensive players to injuries early in the season, with defensive end Nick Bosa going down with a season-ending knee injury in Week 3 and Warner getting hurt in Week 6.

Warner has been pushing to make a return and if he can, that would provide a needed boost. But Shanahan said the final decision will be in the hands of the team doctors.

“If he feels good and tells me he’s good, I’m probably going to think he is and trust him to get out there,” Shanahan said. “But you can't always think with your heart and emotionally. So you ask doctors where he’s at, all the things that these guys have to pass, just protocols that we have in with just sprinting and jumping and things like that. He’s got to hit all those before we feel it’s safe.”

But Shanahan added that as soon as the doctors clear Warner, "obviously it’ll be zero decision on my part.”

Warner had been a first-team All-Pro three straight seasons from 2022-24 and made the squad in 2020. His 947 career tackles are the second most for the team, behind Patrick Willis’ 950, as far as records go back to 2000.

Warner had missed only one game in his eight-year career before this injury, sitting out in 2021 with a hamstring injury. He played most of last season with a broken bone in his ankle and still earned All-Pro honors.

Warner signed a three-year extension worth $63 million in the offseason, keeping him under contract with the team through the 2029 season.

In other injury news, safety Ji'Ayir Brown (hamstring) and Luke Gifford (quadriceps) all would have been unable to practice had the team held a session. Receiver Ricky Pearsall (knee), linebacker Dee Winters (ankle), guard Dominick Puni (ankle) and defensive lineman Keion White (groin, hamstring) all would have been limited.

Shanahan also said tight end George Kittle is set to have surgery on his ruptured Achilles tendon on Wednesday. Kittle went on injured reserve Tuesday and tight end Brayden Willis was signed from the practice squad.

AP NFL: https://apnews.com/hub/nfl

FILE - San Francisco 49ers middle linebacker Fred Warner is carted off the field during the first half of an NFL football game against the Tampa Bay Buccaneers in Tampa, Fla., Oct. 12, 2025. (AP Photo/Jason Behnken, File)

FILE - San Francisco 49ers middle linebacker Fred Warner (54) runs to the locker room after pregame warm-ups before an NFL football game against the Tampa Bay Buccaneers on Oct 12, 2025, in Tampa, Fla. (AP Photo/Peter Joneleit, File)