30-Hectare Supercolony: Invasive Ant Species Overruns Jena City Center

Symbolbild: 30 Hektar große Superkolonie: Invasive Ameisenart überrennt Jenaer Innenstadt

Jena, May 16, 2026 – The city center of Jena is struggling with a massive spread of the invasive ant species “Lasius neglectus.” A suspected supercolony now spans 30 hectares and is increasingly displacing native species. The situation for business owners and residents is intensifying.