Invasive spotted lanternfly detected in Hungary in first European Union sighting

The Hungarian food safety agency Nebih announced on 24 September 2026 the first confirmed detection of the spotted lanternfly (Lycorma delicatula) in Hungary and the European Union. A local resident in the southern county of Bacs-Kiskun, which borders Serbia, discovered an unfamiliar specimen and alerted authorities after being unable to identify the insect. Subsequent laboratory analyses confirmed the species, prompting Hungarian agricultural officials to initiate formal quarantine protocols.

The insect is officially designated as a quarantine pest under European Union agricultural regulations, making early detection a priority for member states.

It is the first confirmed detection of this insect, which is classified as a quarantine pest by the EU, in Hungary and in the European Union.

Biological characteristics and host plants

Native to Southeast Asia and subtropical regions of Asia, the spotted lanternfly measures approximately 25 millimetres in length and 15 millimetres in width across its abdomen. The insect possesses two pairs of brightly coloured wings. At maturity, it uses a specialized mouthpart to pierce plant tissue and extract sap, depriving hosts of essential nutrients. When multiple specimens feed on the same host simultaneously, the cumulative fluid loss weakens the plant and can lead to its death. The species poses no direct physiological threat to humans or animals.

The pest feeds on more than 70 distinct plant species, encompassing ornamental varieties, nut trees, commercial timber, and orchard fruit trees. Scientists at the French National Research Institute for Agriculture, Food and Environment (INRAE) note that the insect presents an acute risk to grapevines and fruit orchards. The insect demonstrates a particular affinity for vineyards, where sap depletion compromises crop yield and vine vitality.

Economic impact in the United States

The European detection follows agricultural damage documented across North America over the past decade. The spotted lanternfly was first observed in the United States in 2014 in Berks County, Pennsylvania, after arriving two years prior in 2012 on an imported shipment of stone from Asia. The insect subsequently proliferated across parts of the eastern United States.

A 2020 economic assessment conducted by researchers at the University of Pennsylvania calculated that the pest caused 554 million dollars in annual agricultural losses in Pennsylvania alone, equivalent to 487 million euros. The study also attributed the yearly loss of nearly 5,000 jobs within the state to infestations affecting timber, nursery, and vineyard operations.

Quarantine enforcement and surveillance

Following laboratory verification of the specimen in Bacs-Kiskun, Nebih enacted quarantine measures aimed at isolating the discovery site and assessing surrounding vegetation for additional populations. The agency stated that laboratory testing confirmed the presence of the insect before emergency response protocols were deployed.

Laboratory analyses subsequently confirmed its presence, and the authorities have begun to take the necessary quarantine measures.

Nebih emphasized that sustained public vigilance and rapid reporting from residents remain essential to stop the invasive pest from establishing permanent colonies and expanding across Central Europe. Surveillance teams continue inspecting surrounding agricultural zones along the southern border corridor.