Woking Warned as Toxic Caterpillars Invade Surrey Parks
Toxic Caterpillars Spotted in Woking and Surrounding Parks
A stark warning has been issued to Surrey residents as toxic oak processionary moth (OPM) caterpillars begin to emerge across the region. Local authorities are urging communities in Woking, Guildford, and nearby East Horsley to remain highly vigilant when visiting local woodlands and green spaces. These invasive pests, which thrive in oak trees during late spring and early summer, pose a significant health hazard to humans and animals alike. Key recreational areas such as Woking Park and Horsell Common, which serve as vital hubs for dog walkers, families, and outdoor enthusiasts, are currently on high alert. The caterpillars are covered in thousands of tiny, microscopic hairs containing a harmful toxin called thaumetopoein. Contact with or inhalation of these hairs can trigger painful skin rashes, severe eye irritation, sore throats, and breathing difficulties. Ellen Nicholson, Woking Borough Council’s portfolio holder for green spaces, has urged the public to familiarise themselves with the caterpillars' distinctive nesting patterns. She emphasized that while the risk remains relatively low for those who keep their distance, immediate reporting of any sightings is crucial to ensure safe, professional removal by specialist teams.
How the Threat Impacts Local Families and Trades
The sudden influx of these hazardous pests has directly impacted how residents interact with their local environment. Dog owners are being cautioned to keep their pets on short leads near oak trees, as inquisitive dogs sniffing around tree bases are highly vulnerable to the caterpillar hairs left on the bark and grass. Meanwhile, local landscape gardeners and tree surgeons are having to implement strict safety protocols before undertaking seasonal maintenance. Interestingly, the outdoor hazard has also influenced home improvement trends this season. Rather than risking itchy encounters while working in their gardens, some safety-conscious residents are opting to focus on indoor home improvements. Local trade directories have seen a surge in enquiries, with homeowners hiring expert bathroom fitters to carry out a long-planned bathroom refurbishment instead of braving the outdoors. Whether you are upgrading your home interiors or managing a local business, adapting to the seasonal threat is top of mind. For those managing private land, the Forestry Commission must be contacted immediately if a nest is spotted, while public sightings in Woking should be directed straight to the council's Neighbourhood Team.
Staying Safe and Reporting Sightings in Surrey
As the caterpillar season progresses, knowing what to look out for is the community's best line of defence. OPM nests are typically dome-shaped or teardrop-shaped, constructed from greyish, silk-like webs, and are usually found on the trunks and branches of oak trees. They can range in size from a small coin to several feet wide. Under no circumstances should residents attempt to remove these nests themselves, as disturbing them releases a cloud of toxic hairs into the air. The species was first accidentally introduced to the UK in 2005, and Forest Research is currently leading a government-backed control programme to limit its spread beyond Greater London and the surrounding home counties. By working together, reporting sightings, and keeping a respectful distance, the Surrey community can play a vital role in keeping our beloved parks safe and accessible. To report a sighting on public land, contact the Woking Borough Council Neighbourhood Team, or use the TreeAlert portal online to notify the Forestry Commission of nests on private property.
