Discovery and Removal
A large European wasp nest, estimated at 40 litres and significantly larger than the typical 2.5-litre size, was discovered in Albany, Western Australia. The nest was found in bushland near residential areas after local residents observed the invasive insects.
Western Australia currently remains the only Australian state without an established population of the European wasp. European wasps are identifiable by their black antennae, differentiating them from native paper wasps, which have black and yellow antennae.
The Department of Primary Industry and Regional Development (DPIRD) was alerted to the presence of the wasps. Public reports, including one from a neighbor to Albany City Councillor Lynn MacLaren, aided DPIRD in triangulating a search area. Baits were utilized to further pinpoint the nest's location.
The nest, described as large, was located at a small granite outcrop in the suburb of Mira Mar. It was found within and beneath two trees. Its removal necessitated the removal of part of one tree, which had sustained damage. DPIRD successfully removed and destroyed the nest, which contained three queen wasps.
European Wasp Presence in WA
The European wasp (Vaspula germanica) is established in most other parts of Australia. According to Kris Armstrong, DPIRD European wasp project lead, hitchhiker wasps are transported to WA via freight from the eastern states.
Armstrong stated that WA's south coast provides an environment suitable for the species, allowing them to thrive year-round. Since 2023, DPIRD has removed a total of 33 nests from the Albany area.
Reporting Sightings
DPIRD maintains thousands of surveillance traps across WA, but public reports are critical to eradication efforts. European wasps typically construct nests in holes and are attracted to protein-rich and sugary foods. This differentiates them from paper wasps, which do not show interest in such food sources.
Members of the public are encouraged to report any suspected sightings of European wasps, even if unsure of the identification. DPIRD's Pest and Disease Information Service can be contacted at 08 9368 3080 or via email at padis@dpird.wa.gov.au.