Following extensive operational investigative work and surveillance, Defra has announced the Colorado beetle has been eradicated from the UK.
A major potato pest, it was discovered in Kent in July 2023 following laboratory diagnosis of samples, with one finding later that year. The beetle can completely strip the leaves from potato plants and several other crops, including tomatoes, aubergines and peppers, and can have a significant economic impact if left uncontrolled.
No further beetles have been found in the space of two years, meaning eradication status has been reached.
Colorado beetle, which does not pose a risk to human health, has previously been detected on imported plant products, such as leafy vegetables, salad leaves and fresh herbs. The beetle is highly distinctive: orange-yellow in colour with 10 characteristic black stripes on its body.
The co-operation and vigilance of farmers have played a part, along with effective biosecurity measures from the Animal and Plant Health Agency and Defra.
Defra Chief Plant Health Officer Professor Nicola Spence said: “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.”
Animal and Plant Health Agency Chief Executive Richard Lewis added. “This is a significant achievement for APHA operational teams, working with Defra, the potato industry and farmers.
Surveillance activities included regular inspections of original outbreak fields and selected potato fields in Kent to rule out incursions resulting from blowover from mainland Europe. Periodic outbreaks of the pest between 1901 and the 1970s also saw it swiftly eradicated due to inspections and public vigilance.
