2021 update – they have now been seen on Epsom & Ashtead common, slightly later than last year.

The Oak Processionary Moth (OPM) is now present in Epsom and the surrounding areas, and during May & June it is a hairy caterpillar that is highly irritant to humans & dogs. If you see a nest like this this on an Oak tree keep well away! You might also see the caterpillar in nose to tail processions on the ground which gives it its name. If you or your dogs comes into contact with the hairs, seek medical advice asap.