An unknown arrival
No one knows for sure how northern giant hornets came to North America. But genetic testing strongly suggests that the insects found in Washington are not closely related to those on Vancouver Island. This makes scientists suspect that northern giant hornets were introduced in two separate incidents around 50 miles apart.
Unfortunately, while so-called “murder hornets” have become a household name, many other non-native and invasive species continue to cause problems in the U.S., but with much less support for their control. (Related: ‘Murder hornet’ mania highlights dangers of fearing insects and spiders.)
For instance, Salp says new introductions of spongy moths, which eat hundreds of different plants, occur in Washington State every year.
Likewise, Kratzer points to another large hornet, the yellow-legged hornet, accidentally brought from Europe into the U.S. state of Georgia in 2023. The species also preys on European honeybees, she says.
“Regardless, the successful control of any invasive species is worth celebrating!” Kratzer says.
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Publish date : 2024-12-19 05:59:00
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