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If you own or manage oak trees in the area affected by oak processionary moth (OPM), you need to check which OPM management zone your trees are in. This will help you to decide what action you need to take. There are currently three geographically-distinct OPM management zones. Established area This is the...

Introduction to the manual of advice for people who own or manage oak trees in areas of England affected by oak processionary moth (Thaumetopoea processionea)

Two pesticides are licensed for control of the larvae, or caterpillars, of oak processionary moth (OPM). These are Bacillus thuringiensis var kurstaki (BT) and deltamethrin. Further information about them is available on the Health & Safety Executive (HSE) website. The status and availability of chemicals can change from year to...

Your first duty as an owner or manager of oak tree or trees in the areas affected by oak processionary moth (OPM) is to protect yourself and others, and pets and livestock, from the health risks which the pest poses. The caterpillars (larvae) develop tiny, irritating hairs from their third...

Pheromone traps are a useful method of surveying for the presence of adult male insects, including those of oak processionary moth (OPM). The traps work by containing a lure comprising a synthetic chemical cocktail which mimics the sexual pheromone emitted by the female to attract a mate for breeding. Deploying...

A decision support system to help foresters predict and reduce damage and costs due to large pine weevil, Hylobius abietis.

Understanding the biology of oak processionary moth (OPM) can help you to manage it. The caterpillars are the larval stage of the insect’s life cycle. OPM gets part of its common and scientific names from the caterpillars’ distinctive habit of moving around in nose-to-tail processions on trees, and sometimes on the ground beneath...

Guide to surveying oak trees for signs of oak processionary moth (Thaumetopoea processionea) and when to apply control measures

A web-based decision support system for British forests

Observatree is an exciting four year project, which began autumn 2013, to set up a new tree health early warning system in the UK.

The ecological benefits of wildflower meadows for incorporation into urban greenspace, including links to case studies with examples of wildflower meadows for biodiversity

The Roots software program was developed in 2005 to help developers create attractive and sustainable green environment on brownfield sites. RootsTM facilitates a structured approach to site characterisation, problem-solving, species selection and successful planting schemes. Through the structured approach it explains and interprets data and generates custom-built site-specific specifications for...