The UK government has confirmed that the Colorado beetle, one of the most destructive pests affecting potato production worldwide, has been eradicated from the country following two years of intensive surveillance and biosecurity measures.

The Department for Environment, Food & Rural Affairs (Defra), working with the Animal and Plant Health Agency (APHA), announced on 11 December 2025 that eradication status has been achieved after no further detections of the pest since late 2023. The declaration follows extensive investigative work and monitoring in Kent, where the beetle was first identified.

The Colorado beetle was discovered in July 2023 after laboratory diagnosis of samples collected in Kent, with a further finding later that year. The pest is regarded as a serious threat to potato production due to its ability to rapidly defoliate plants, potentially leading to significant yield losses if not controlled. In addition to potatoes, the beetle can also attack other solanaceous crops, including tomatoes, aubergines and peppers.

According to Defra, no further beetles have been detected during the two-year monitoring period that followed the initial findings. Regular inspections were carried out in the original outbreak fields as well as selected potato fields across Kent to rule out the possibility of reinfestation, including the risk of beetles arriving through natural migration from mainland Europe.

The confirmation of eradication represents a significant relief for the UK potato sector, which has historically treated the Colorado beetle as a quarantine pest. While the beetle does not pose a risk to human health, its potential economic impact on crop production has long made it a priority target for plant health authorities.

Colorado beetle has previously been intercepted on imported plant products, including leafy vegetables, salad leaves and fresh herbs. The insect is easily recognisable, with an orange-yellow body marked by ten distinctive black stripes. Defra has emphasised that rapid identification and reporting were critical factors in the successful eradication campaign.

The government highlighted the role played by growers, gardeners and allotment holders in supporting official control measures, alongside APHA’s operational response and wider biosecurity framework.

Farming Minister Angela Eagle described the outcome as a positive development for the agricultural sector, stating: “This is great news for British farmers. We will continue to work with partners and stakeholders to maintain UK biosecurity and protect British crops from future threats.”

Defra’s Chief Plant Health Officer, Professor Nicola Spence, underlined both the seriousness of the threat and the importance of continued vigilance. She said: “Colorado beetle can pose a significant threat to plants and the wider potato industry, and I’m grateful for the role of farmers, home gardeners and allotment holders in helping us take the action needed to protect our national crops.”

She added: “This has been a huge team effort and is good news for the potato industry, but in order to prevent further outbreaks, it is vital the public continue to be vigilant and report suspected sightings to the Animal and Plant Health Agency with a photo and location details.”

Richard Lewis, Chief Executive of the Animal and Plant Health Agency, also highlighted the operational achievement behind the announcement. “This is a significant achievement for APHA operational teams, working with Defra, the potato industry, farmers, home gardeners and allotment holders,” he said.

The UK has a long history of monitoring and responding to Colorado beetle incursions. Periodic outbreaks recorded between 1901 and the 1970s were also eradicated through inspection regimes and public reporting, reinforcing the importance of early detection and coordinated action.

While eradication status has now been confirmed, Defra has reiterated that suspected sightings must continue to be reported promptly to prevent future outbreaks and to safeguard the UK’s potato production and wider horticultural sector.