Oak processionary moth Surrey: How to spot nests, avoid exposure and report sightings—urgent advice for landowners and residents this season.
The oak processionary moth (OPM) poses both tree-health and public-health risks. In Surrey, local authorities and the Forestry Commission continue to monitor and issue guidance—so prompt recognition and reporting are essential to protect people, pets and oak trees.
Why OPM is a concern for Surrey
OPM caterpillars carry tiny, urticating hairs that can cause skin rashes, eye irritation and respiratory problems. They also defoliate oak trees, weakening tree health and increasing susceptibility to other pests and disease.
How to identify oak processionary moth activity
- Look for small, white, silken nests (often tennis-ball sized) in oak branches.
- See processionary lines of caterpillars moving in single file along trunks or branches.
- Find caterpillar hairs or shed skins under trees, and notice localised leaf loss on oak trees.
Health & safety — what NOT to do
Do not touch caterpillars, nests or loose hairs. Avoid brushing past infested trees. If you or a pet are exposed and develop a rash, difficulty breathing or eye irritation, seek medical advice.
Reporting and official guidance
If you spot suspected OPM, report it promptly to local authorities. The Forestry Commission and GOV.UK maintain current guidance and management zones; follow their advice on reporting and not attempting removal yourself. Forestry Commission / GOV.UK guidance. Surrey county councils also publish local reporting instructions—check your borough’s website (for example, Surrey County Council advice).
What professionals do to manage OPM
- Risk assessment and safe removal by trained arborists (specialist PPE and containment).
- Targeted treatments or nest removal outside of public access areas.
- Public awareness, signage, and temporary site closures where necessary.
Practical steps for homeowners and landowners
- Do not attempt to remove nests—contact qualified tree specialists.
- Keep children and pets away from suspected infestation sites.
- Report sightings with clear location information and photos if safe to take them.
- Consider professional tree surveys if you manage multiple oaks or a larger property.
Local action & support
Local councils and the Forestry Commission are currently the best sources for up-to-date management zones and reporting procedures. For site assessments, tree-work and pest management in Surrey, Go2 Pest Control can coordinate with qualified arborists and advise on safety and reporting. See official OPM guidance for more detail. Forestry Research OPM page.
Contact Go2 Pest Control if you suspect oak processionary moth on your property—don’t attempt removal yourself; report it and let trained professionals handle it.