Auckland Strives to Eradicate 27 Invasive Yellow-Legged Hornets

Authorities in Auckland are intensifying efforts to eliminate the invasive yellow-legged hornet after detecting a total of 27 queen hornets in the region. Alongside these findings, teams have also discovered and removed seven worker hornets and 17 nests primarily located in the Glenfield and Birkdale areas. The first hornet was observed in Glenfield in late October 2023, prompting immediate action due to the species’ significant threat to local ecosystems.

The yellow-legged hornet poses a particular risk to honey bees and wild bees, which are essential for pollination. Genetic testing has indicated that the hornets are closely related, suggesting a small, contained population rather than a widespread infestation. This finding has led Biosecurity New Zealand’s North Commissioner, Mike Inglis, to assert that current surveillance measures are yielding positive results.

Expanded Search Efforts Underway

Inglis reported that the search radius has been significantly expanded. “In recent weeks, we’ve put in five times as many traps—now more than 600—across a 5-kilometre radius from detection sites,” he stated. Property-by-property searches are also being conducted within 200 metres of confirmed hornet sightings. Authorities have inspected over 2,100 properties so far, with numbers increasing daily.

Intensive ground searches are proving effective, with many nests and queens being detected through these efforts. “Those ground searches are paying dividends,” Inglis noted. The operation involves collaboration among multiple organizations, including Auckland Council, Pest Free Kaipātiki, Plant & Food Research, and Kiwifruit Vine Health, all working alongside Biosecurity New Zealand.

Additionally, international expertise has contributed to the acquisition of electronic tracking equipment, further bolstering the eradication efforts.

Community Involvement is Vital

Inglis highlighted the crucial role of community participation in this initiative. “We’ve had more than 4,000 public notifications so far, an incredible contribution, and we’re very keen for this to continue,” he emphasized. Residents are urged to report any suspected hornet nests or provide photographic evidence to Biosecurity New Zealand immediately.

As Auckland ramps up its fight against these invasive hornets, the cooperation between government bodies and community members plays a critical role in protecting local ecosystems from further disruption. The ongoing surveillance and eradication efforts reflect a proactive approach to managing this environmental challenge.