Oak Processionary Moths

Oak Processionary Moths

Oak Processionary Moths have been found in parts of West London. Residents are advised to keep an eye out during spring and summer and to report any concerns in the London Borough of Hammersmith and Fulham to the Pest Control Team on 020 8753 1081.

For more information on the moth visit the Foresty Commission website

http://www.forestresearch.gov.uk/website/forestresearch.nsf/byunique/infd-74abrm

Health advice and information

How is the moth a health risk? 
The Oak Processionary Moth (Thaumetopoea processionea) has caused outbreaks of dermatitis, conjunctivitis, itching, pharangitis and respiratory distress in Austria, Belgium and Holland in recent years. 
The larvae of the caterpillar have hairs (setae) filled with a histamine liberating toxin (thaumetopoein), which in contact with the skin causes the above symptoms. The setae can spread by wind and affect people exposed up to 20 metres. 
The illness associated with this moth is thought to be more serious than that associated with brown tail moth which has been prevalent in the UK for many years.

How does the moth cause symptoms? 
The hairs of the caterpillar contain a toxin, which releases histamine in humans, causing symptoms similar to allergies.

What are the symptoms? 
Most people present with skin itching and rashes, conjunctivitis and sore throats. Small numbers have symptoms of respiratory distress, similar to asthma.

“If anyone is concerned that they may be suffering the symptoms associated with these caterpillars, they should contact NHS Direct or their GP.”

NHS Direct is a 24 hour helpline: 0845 4647.