oak processionary moth

The Oak processionary moth (OPM) is a relatively new pest to the UK. An outbreak was first identified in the UK in 2006 in West London.

Since 2006, OPM infestations have occurred entirely around London and surrounding counties. Although OPM specimens have previously been identified in Leeds and Sheffield, follow-up surveys suggest no viable breeding populations have become established.

The most recent map released by the Forestry Commission has shown a slow but steady spread throughout the London boroughs. Members working in or around London should familiarise themselves with this distribution and identification guide, with details available in our OPM document.

Incidences of Oak processionary moth should be reported to the Forestry Commission:

T: 0300 067 4442

E: opm@forestry.gsi.gov.uk