Vespa mandarinia

On August 19, 2021, WSDA announced during an AGH webinar that the second AGH nest discovered in the U.S. was found in the base of a dead alder tree in a rural area in Whatcom County just east of Blaine, WA. The site was about one-quarter mile from the Canadian border. Last week, the WSDA announced that the nest had been destroyed.

A recent announcement by the Washington Department of Agriculture has put the Asian Giant Hornet (AGH) (Vespa mandarinia) back in the news. A dead male hornet was submitted by a homeowner located in the state of Washington just outside the geographical locations of the original detections in 2019 and 2020.

Annual Dog-Day Cicadas (Neotibicen canicularis; family Cicadidae) are singing in Ohio. Curtis Young (OSU Extension, Van Wirt County) heard his first cicada on July 3. Dave Shetlar (Professor Emeritus, OSU Entomology) reported hearing his first cicada in central Ohio last Friday and I heard my first cicada song late last week in the southwest part of the state.

The Asian Giant Hornet (Vespa mandarinia) was found late last season in the northwestern corner of Washington State and just across the U.S. – Canadian border on Vancouver Island, British Columbia. It has not been found elsewhere in North America, but we must remain vigilant.

Previous BYGL Alerts noted that the Asian Giant Hornet (Vespa mandarinia) had never been officially confirmed in North America. That changed late last season when the non-native hornet was found in the northwestern corner of Washington State and just across the U.S. – Canadian border on Vancouver Island, British Columbia.

When you read or hear about "Asian hornets," you need to keep two things in mind. First, the "Asian" moniker has been commonly applied to at least three hornet species native to various Asian regions. The second thing to remember is that none of these hornets have been found living in the U.S.