Asian hornets prey on diverse range of insects

Invasive Asian Hornets Threaten Hundreds of Insect Species, Scientists Warn

Asian hornets are putting hundreds of insect species at risk, including key pollinators, according to new research highlighting the insect’s wide and adaptable diet.

A team from the University of Exeter studied the remains of prey found inside over 1,500 larvae from 103 hornet nests located across Jersey, France, Spain, and the UK. Their findings reveal that Asian hornets are "highly flexible predators," capable of consuming a vast array of insects, raising further alarm over the species' growing impact on native wildlife.

While honeybees remain a primary target—with a single hornet capable of killing up to 50 bees a day, potentially wiping out entire colonies—the study uncovered evidence of 1,449 different prey species. These included flies, wasps, butterflies, moths, spiders, and other essential insects, with honeybees, common wasps, and blowflies among the most frequent victims.

"Until now, we knew Asian hornets hunted honeybees, but this study is the first to reveal the full extent of their varied diet," explained lead researcher Siffreya Pedersen. "Their ability to switch prey depending on the season and location makes them particularly concerning."

The research underscores growing fears for already struggling insect populations. "Insects play crucial roles in pollination, decomposition, and pest control," Pedersen added. "With many species already in decline due to habitat loss and pollution, the spread of the Asian hornet adds yet another significant threat."

The continued spread of the invasive hornet across Europe and into the UK is causing mounting concern for conservationists and beekeepers alike, as the species establishes itself in new areas and disrupts fragile ecosystems.