Learn lessons from "unsuccessful" OPM control strategy, tree officers urge

Early concerted action could have prevented the establishment in southeastern England of the oak processionary moth (OPM, Thaumetopoea processionea), the London Tree Officers Association has said in a revised position statement on the noxious tree pest.

You must sign in to continue.

You can register for a 14 day free trial subscription, or Subscribe Now for full access. View subscription options.

Please enter your details

Forgotten Password?

Having trouble signing in?

Contact Customer Support at

or call 020 8267 8121, or refer to our answers to frequently asked questions.

Subscribe for full access

Direct Debit

Most people subscribe by direct debit.


Credit Card

Subscribe by credit card


or Register for a 14 day free trial subscription

Already subscribed but don't have a password?

Activate your web account here