Oak processionary moth - Update 2020

In 2020 the plant health authorities increased surveillance in the Protected Zone. In June and July 2020 OPM was found on a very small number of trees at five sites within the Protected Zone, in the English counties of Sussex, Oxfordshire, Bedfordshire and Cheshire. They took swift and appropriate action to treat the infested trees and minimise the risk of spread. This included spraying trees in the affected areas and undertaking enhanced local surveillance.

Additional information can be found on the FC website here – https://www.forestresearch.gov.uk/tools-and-resources/pest-and-disease-resources/oak-processionary-moth-thaumetopoea-processionea/