Be on the lookout for this moth in Surrey

We're being warned to be on the look out for a tree pest that can cause an itchy rash in Surrey.

The Oak Processionary moth has been spreading rapidly in the South East.

Elmbridge Borough Council say over the last few years they have numerous sightings in the area.

Cllr Janet Turner, Portfolio Holder for Leisure and Culture, said,

“At this time of year, many people are enjoying green spaces and it’s really important for residents and visitors to be aware of the risk of Oak Processionary Moth (OPM).

"We are aware of the presence of OPM in the borough and are monitoring the situation closely.

"We are removing nests or spraying infected areas if they cause a serious threat to the community.

"We will continue to do so where OPM cause the most risk to residents."

What do OPM look like?

They have long, white hairs, a grey body and dark head. Older larvae have a central dark stripe with paler lines down each side.

They build white silk-type nests in the branches or trunks of trees (not in the leaves).

Where can they be found?

They can be spotted on oak tree trunks moving about in late spring and early summer (May, June and July) in nose to tail processions.

Lines of caterpillars are often arrow-headed.

They can sometimes be found on the ground moving between trees in this procession.

What is the risk to residents?

The caterpillars and their nests contain hairs which can cause itchy rashes, eye and throat irritations and in some very rare cases, allergic reaction in people and animals who you come in contact with them.

The greatest risk period is May to July when the caterpillars emerge and feed before pupating into adult moths.

Caterpillars can shed hairs if they are disturbed or threatened.

The hairs can be blown by the wind, stick to trunks, branches, grass and clothing. In warm weather, hairs can stick to the skin more easily when you wear sun cream

What to do when you spot an OPM nest

Do not to ignore them but stay well clear of the affected trees.

Make you keep dogs under control, away from infested areas as well

If the sighting is on private land, please report it to the Forestry Commission using the Tree Alert online reporting form or call them on 0300 067 442.

If the OPM are found on am Elmbridge Borough Council-owned tree, report it on 01372 474825, 01372 474579 or by email at opm@elmbridge.gov.uk.