Attention, oak processionary moth! These dangers now threaten in Braunschweig
Braunschweig warns of oak processionary moths in 2025: Danger of allergies due to stinging hairs, quick control in sensitive areas.

Attention, oak processionary moth! These dangers now threaten in Braunschweig
Summer is approaching and while the people of Cologne are looking forward to warm evenings in the parks and lively barbecues, this time of year also brings with it a certain danger: the oak processionary moth. This caterpillar is particularly active in the months from May to the end of July or beginning of August and is particularly visible on oak trees. The city of Braunschweig advises that it's time to keep an eye on the trees, as dealing with these small, voracious beasts can lead to unexpected and unpleasant encounters. News38 reports that From the third larval stage onwards, the caterpillars develop toxic stinging hairs that can cause numerous allergic reactions.
Symptoms range from itchy rashes, redness, sore throats to asthma attacks. Affected body parts are often the neck, face and uncovered arms and legs, where the caterpillars' stinging hairs have come into contact. Contact with these hairs can even lead to caterpillar dermatitis, which manifests itself as hives, blisters and severe itching. The AOK explains that Although the symptoms subside after a short time, severe allergic reactions such as hives or even anaphylactic shock can also occur.
Precautions and instructions
The city has taken responsibility and is removing caterpillar nests in sensitive areas such as schools, daycare centers or retirement homes within 24 hours. In residential areas, removal is also done quickly, usually within 48 hours. It is strongly recommended to report possible affected oak trees, indicating only those oak trees that are actually affected. News38 highlights that Information signs and cordoned off areas should always be observed.
But it's not just the direct encounter with the caterpillars that is problematic. NetDoktor informs that The impending danger is more complex: the wind can spread the fine stinging hairs, so that even walkers in the forest or residents in forest areas with oak trees are affected. Children, people playing outdoors and forest workers who are actively working in the affected areas are particularly at risk.
What to do in case of contact?
In the event of contact with the stinging hairs, it is important to act quickly. Although the symptoms usually disappear after two days to two weeks, an immediate visit to the doctor is essential in the event of acute reactions. As mentioned in the information from the AOK, inhaling the caterpillar hairs can lead to respiratory diseases. Therefore, people with known respiratory problems should also be particularly careful.
Remember: You can get more information and support from the city of Braunschweig on the telephone numbers 0531/470-1, 0531/115 or by email at buergertelefon@braunschweig.de. Keep your distance from the oak trees that are under suspicion and continue to enjoy the beauty of summer. But be careful – stay away from the oak processionary moths!