The northern giant hornet (Vespa mandarinia), was first discovered ... Vacuuming: Yes, the WSDA used a vacuum hose to remove hornets from nests. Carbon dioxide: They also injected carbon dioxide ...

With a nickname like "murder hornet," it's no wonder the Vespa mandarinia species of flying ... The WSDA last located and eradicated nests in 2021. The first nest found and destroyed in 2020 ...