[CLSTR]
< Back to situation

[REVISION HISTORY]

Asian hornet spread and insect trends in Germany

Updated 2 times since CLSTR started tracking revisions of this situation.

What changed

2026-07-30 05:49 UTC → 2026-07-31 19:17 UTC · added removed

European control programmes in summer 2026 kept expanding. Germany continued to expand. Germany kept a dual focus, issuing warnings warn about the invasive large‑gland ant (Tapinoma magnum) and providing guidance on while monitoring the Asian hornet (Vespa velutina), which remains now widespread across Baden‑Württemberg, Hessen, North Rhine‑Westphalia and other in western states, preying on honeybees Berlin and fruit‑bearing insects. Hamburg. Nests must be reported and removed only by professionals, with fines up to €50,000 for self‑removal. Recent monitoring shows the Asian hornet now occurs widely in western Germany as well as in Berlin and Hamburg, with records dating from 2023‑2024. Experts link the expansion to climate‑related warming and accidental importation. The EU continues to classify the species as invasive, and German authorities maintain strict penalties for illegal killing. handling. New data records from July 2026 shows the large‑gland ant show T. magnum forming massive supercolonies in several German states, now also monitored in Bavaria. First recorded near Haßfurt in 2009 at an Ingelheim tree nursery, the ant arrived on imported Mediterranean trees and now damages sidewalks, garden walls, electrical boxes and fosters aphid outbreaks that coat ornamental plants with honeydew. Authorities urge residents to report sightings, photograph nests and Bavaria; authorities advise against large‑scale insecticide use steam‑treated water, hot water or diatomaceous earth; a steam‑cleaning device already deployed burning nests because of fire risk. In Baden‑Württemberg, researchers identified the Asian needle ant (Brachyponera chinensis), classified by the EU in Karlsruhe is promoted at citizen‑information events such 2025 as a high‑risk organism due to severe allergic reactions. In the recent one in Stockstadt. Researchers Netherlands, municipalities Stein and Weert intensified hornet control. By May 2026, 120 traps in central Germany reported an early rise Stein captured 1,017 Asian hornet queens, and beekeepers in activity of night butterflies Weert removed a secondary summer nest using specialised equipment. Both towns promote reporting via local apps and the once‑endangered Segelfalter, suggesting image‑recognition tools. German and Dutch agencies continue citizen‑information events, steam‑cleaning devices, and hot‑water treatments to curb invasive insects. Researchers note a tentative rebound of some native insects. Scientists caution that rise in night‑butterfly activity, but robust data confirming a reversal of long‑term insect declines are still lacking remain lacking, and that the growing Asian hornet population continues to pressure still pressures pollinators and crop‑bearing insects. In the Netherlands, an industrial‑vacuum method funded by Gelderland province removed two Asian hornet nests in Nijkerk on 20 July.

Versions

  1. 2026-07-31 19:17 UTC Asian hornet spread and insect trends in Germany
  2. 2026-07-30 05:49 UTC Asian hornet spread and insect trends in Germany
  3. 2026-07-26 15:36 UTC Asian hornet & large‑gland ant spread in Europe, US

Only revisions since CLSTR began indexing content versions appear here. Select a version to see what changed compared to the one before it.