On 30 October 2026, Luxembourg confirmed the presence of the bacterium that causes Xylella fastidiosa at three sites in the Moselle-wine-growing region. Areas in the municipalities of in samples from three vineyard plots in the municipalities of Mertert and and Grevenmacherare affected. According to the Ministry of Agriculture, the affected plots have been cleared and infected plants destroyed. The discoveries are a few kilometres from Germany’s Upper Moselle.
On the German side, the authorities in Rhineland-Palatinate responded immediately. The Plant Protection Service took extensive leaf samples in vineyards near the border, including in Nittel –. Around 800 samples from the region are to be analysed at the laboratory of the Rural Service Centre in Neustadt an der Weinstraße . Reliable laboratory results are not expected for several weeks. The state authorities are preparing additional inspections for the coming days and have referred to advice already published by municipalities in the region on preventing the disease from spreading.
Xylella fastidiosa is listed as a quarantine pest in the European Union. The pathogen infects numerous woody plants and vines, causes desiccation and can threaten entire populations. The bacterium is transmitted mainly by sap-sucking insects such as leafhoppers, as well as through the transport of infected plants. The authorities are therefore relying on demarcation zones and transport restrictions. Luxembourg has established an infected area and a 2.5-kilometre buffer zone around each detection. Reporting requirements, inspections and strict disposal rules apply within these zones.
Experts stress that the immediate risk of spread is seasonally limited, as the insect vectors are largely inactive during the colder months. Rapid spread driven by weather conditions is therefore currently considered unlikely. Nevertheless, the authorities are expressly warning people not to move green waste or other plant material out of buffer zones. Suspected symptoms, such as severely dried shoots or unusual leaf discolouration, should be reported immediately, and the locations where they are found should be documented precisely.
For wine-growing businesses along the Moselle in Rhineland-Palatinate, the discoveries in Luxembourg chiefly mean increased vigilance, more frequent inspections and a coordinated assessment of the situation. It is not currently possible to estimate the economic damage; this will depend on how the affected area develops, the outstanding diagnoses and any orders issued by the competent authorities. Coordination between Luxembourg and Rhineland-Palatinate, as well as with the Julius Kühn Institute is ongoing, to ensure that measures are implemented consistently along the border and to minimise the risk of the disease being introduced into Germany.
Editor: Mira Cadena (Article created with AI assistance).