The UK Forestry Commission has issued a warning about the oak processionary moth (OPM) caterpillars, which pose health risks and threaten oak trees in South East England.
The public is urged to report sightings to help control their spread and protect both tree health and public safety.
Understanding the Threat of Oak Processionary Moth
The oak processionary moth (OPM) caterpillars are a growing concern in South East England, particularly due to their damaging effects on oak trees and potential health risks to humans.
These pests strip foliage from oak trees, weakening them and making them more susceptible to disease. The warm spring weather has accelerated their growth this year, increasing the urgency for public vigilance.
Health Risks Associated with OPM
Contact with OPM caterpillar hairs can cause painful rashes, eye irritation, and respiratory issues.
This poses a significant risk not only to residents but also to outdoor workers who may come into contact with these pests during their daily activities.
The Forestry Commission advises against touching or removing nests due to these health hazards.
Efforts to Control the Spread
The Forestry Commission has implemented several measures to manage OPM infestations. Public reporting through the TreeAlert portal is crucial for tracking and controlling the spread of these pests.
Local authorities can access grants for managing infestations, including funding for surveys and biosecurity measures such as boot cleaning stations.
Steps You Can Take
- Avoid direct contact with OPM caterpillars or nests.
- Report any sightings via the TreeAlert portal or email opm@forestrycommission.gov.uk.
- If you experience severe reactions after contact, seek medical advice promptly.
- Pet owners should monitor animals closely when near affected areas.
The Implications of OPM Infestations
The introduction of OPM in London in 2006 highlights the challenges posed by invasive species through global trade.
Since then, it has spread across South East England despite government efforts like quarantine zones and movement restrictions on oak trees introduced in 2024.
Effective management is essential not only for protecting local ecosystems but also for maintaining international biosecurity standards post-Brexit.
Forestry Commission Comments
Forestry Commission Oak Processionary Moth Programme Manager Dr Edward Straw said:
“The warm weather in spring has led to oak processionary moth growing quicker than in previous years.”
“We’re already receiving reports of homeowners being affected by the caterpillars, coming out in painful rashes, and it is important those living and working in areas affected by oak processionary moth remain vigilant about the health risks they pose.”
“The Forestry Commission has a whole host of information online that can be used to identify the moth, simply visit managing oak processionary moth in England. If you spot the pest, report the sighting via our TreeAlert portal . Alternatively, you can email opm@forestrycommission.gov.uk.”
Additional Reading
Final Thoughts
The threat posed by oak processionary moths underscores the importance of public awareness and proactive management strategies.
By staying informed and reporting sightings, individuals can contribute significantly to controlling this pest’s spread, thereby safeguarding both human health and valuable natural resources like oak trees.
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Sources: UK Government, Forestry Commission, and Plant Health Action.org.
Prepared by Ivan Alexander Golden, Founder of THX News™, an independent news organization delivering timely insights from global official sources. Combines AI-analyzed research with human-edited accuracy and context.
