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“Murder hornets” likely came to U.S. as “unwitting hitchhikers”


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“Murder hornets” likely came to U.S. as “unwitting hitchhikers”

News of the “murder hornets'” arrival in the United States has set the internet abuzz in recent days. Two of the wasps — the world’s largest hornet species — were discovered late last year in Washington state, and scientists have since been trying to track the invasive insects to eradicate them. But how did the…

“Murder hornets” likely came to U.S. as “unwitting hitchhikers”

News of the “murder hornets'” arrival in the United States has set the internet abuzz in recent days. Two of the wasps — the world's largest hornet species — were discovered late last year in Washington state, and scientists have since been trying to track the invasive insects to eradicate them.

But how did the Asian giant hornets — which have orange and black markings and are nearly two inches long — make it to America?

Karla Salp, a spokesperson for the Washington State Department of Agriculture, said it was unclear how the hornets, which reportedly kill up to 50 people a year in Japan, arrived in the U.S.

“Normally, though, they are unwitting hitchhikers on something (like shipping containers) or someone,” Salp told AFP.

The two hornets spotted in Blaine, Washington, were found in December. One was alive and flew off, while the second was dead, said Paul van Westendorp, an apiculturist in British Columbia.

He said the only actual nest of hornets found in North America was discovered on Vancouver Island and destroyed. A specimen was also found in White Rock, British Columbia, last November.

Scientists suspect there are probably more of the insects than just the two spotted last year, which is why a public outreach campaign has been launched to help with eradication efforts.

“During this trapping season and with the help of public education and encouragement to report suspected sightings, we hope to have a better idea of where they are as well as to eradicate them if we can,” Salp said.

Scientists warn that unless the insect is eliminated in the next couple years, it could spread in North America and become permanently established.

Salp said the hornets, which are native to East Asia and Japan, don't usually attack people, but they are known for decimating honeybee colonies.

“In general, people do not need to worry,” she said. “As long as you don't step in a nest or approach a beehive they have taken over, there is a fairly low risk that you will be stung.

“That being said, if you are stung, their venom is more toxic than that of local bees and wasps, and they have more of it,” she added.

In 2018, YouTube personality Coyote Peterson demonstrated what the sting is like on his show “Brave Wilderness.” The video shows an “instant goose egg” forming on his arm where the hornet stung.


Giant Hornet KNOCKS OUT Coyote! by
Brave Wilderness on
YouTube

In Japan, where the insects are hunted and eaten, some 30 to 50 people die each year from their venomous and excruciating sting.

But while the giant hornets are typically not harmful to humans, they do pose a great danger to bee populations, which have been declining in many parts of the world.

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Washington State University researchers said the hornets attack the bee hives, decapitating and killing the adults and eating the larvae and pupae. Just a few of the hornets can completely destroy a hive in a matter of hours.

The hornets then occupy honeybee nests for up to a week or more, feeding on the pupae and larvae.

Li Cohen contributed to this report.

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