Fight against the ant plague: Esslingen is testing a new control method!

Fight against the ant plague: Esslingen is testing a new control method!

In recent years, the invasive ant speciesTapinoma magnum, originally from the Mediterranean region, increasingly spreading in Germany. The ant is particularly active in regions such as Baden-Württemberg, Rhineland-Palatinate, Hesse and in cities such as Cologne and Hanover. The special thing about Tapinoma magnum is that it is hugeSuper colonies, in which millions of animals live and displace native species. This can cause problems even in populated areas, such as intrusion into homes, which has already caused power and internet outages. Those affected report massive accumulations, especially in and around Esslingen, where various countermeasures are being tested.

One has now been opened in Esslingen-Sirnaunew control methodtested against the invasive ant population. A special bait gel is used that contains an attractant that attracts the animals and allows them to transport the active ingredient to the nest. Although this method is more expensive than the usual hot water treatment, it cannot be used in all areas. The hot water is usually considered the preferred method to control Tapinoma magnum. The aim of the work is clear: the entire colony should be covered so that the active ingredient also reaches the queen and the brood.

Research and population survey

An important part of the control strategy is an ongoing one Research project, which aims to create a high-quality reference genome for Tapinoma magnum. Long-term genome sequencing will not only be used to identify the origin of the invasion, but also to document the spread of the ants across Central Europe. These measures enable a clear distinction between invasive and native species and promote understanding of invasion dynamics.

Citizens are actively involved in the project: They are invited to collect specimens of Tapinoma magnum and document their data. This enables better spatial and temporal tracking of the invasion in Baden-Württemberg. The scientists also aim to model the ant's future spread by taking into account environmental variables and urban development plans. This also allows potential risk areas to be identified.

attention to the problem

Not only does the brave ant have to contend with health concerns like temporary allergies, but he also has to fight the stigma of being perceived as a pest. The Secretary of State for the Environment has designated Tapinoma magnum as such, even though it is not officially legally listed as invasive. This raises questions: How much influence does this opinion actually have on the control measure? While the ants themselves do not transmit diseases, their massive presence should not be underestimated, as an incident in Kehl shows, where a playground was closed due to the risk of accidents.

Overall, combating the invasive ant species is a complex issue that requires comprehensive scientific support and the participation of the population. The methods and approaches being tested in Esslingen could soon serve as a model for other affected regions. In the hope that an efficient remedy against Tapinoma magnum will soon be found, the topic remains effectively discussed.

Interested citizens also have information and the opportunity to report Tapinoma cases via Reporting portal, which is being set up in collaboration with the Baden-Württemberg State Environmental Agency.

The solution to the problem is in sight, but the challenge continues: What will be the next step in the fight against the super colonies? Research will show.

Sources: SWR, Natural History Museum, daily news.