Skip to main content
Contact Us
Contact Us

Search Results

Refine Results

Back

Refine Results

Publish Date:

3946 Search Results

  • Tools and Resources

    Phytophthora manual – 2. Identification and symptoms of ramorum disease

     Guide to the symptoms of ramorum disease caused by Phytophthora ramorum, with particular reference to larch (Larix spp.), sweet chestnut (Castanea sativa) trees and Rhododendron ponticum shrubs in British woodland
  • Tools and Resources

    2019 – Woodland Carbon Code

     The Woodland Carbon Code is a voluntary standard, initiated in July 2011, for woodland creation projects that make claims about the carbon they sequester (take out of the atmosphere). All projects must be placed on the UK Woodland Carbon Registry.  Their claims about potential carbon sequestration are validated by an independent certification body.  Validated projects are […]
  • Tools and Resources

    European Forest Accounts

     UK forestry statistics provided to international organisations - European Forest Accounts (EFA)
  • Tools and Resources

    Biosecurity – practical considerations

     Practical considerations of biosecurity and how planting exotic species and increasing movement of seeds can increase the risk of importing and disseminating new pest species (insects and pathogens).
  • Tools and Resources

    Oak defoliators

     Biotic factor that contributes to oak decline
  • Tools and Resources

    Pest and disease resources

     Pest and disease resources and advice from Forest Research
  • Tools and Resources

    OPM Manual – 8. Occupational health

     Oak processionary moth (OPM) caterpillars, or larvae, are covered with thousands of minute, irritating hairs. These can be released as a defence mechanism, or blown off by the wind, and come into contact with people and animals. Contact can cause symptoms ranging from a mildly itching rash to allergic reactions. The caterpillars build communal nests on the trunks […]
  • Tools and Resources

    Other common pest and disease problems of horse chestnut

     Overview of common pests and pathogens of horse chestnut.
  • Tools and Resources

    OPM Manual – 7. Manual removal of nests and larvae

     The first thing to consider when planning to manually remove oak processionary moth (OPM) nests and caterpillars (larvae) is personal protection from contact with the caterpillars’ irritating hairs. It is not only the caterpillars which pose a risk: OPM nests (pictured below) also contain thousands of hairs shed by the caterpillars. These continue to pose a health hazard, either through […]
  • Tools and Resources

    OPM Manual – 1. Introduction and contents

     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)
  • Tools and Resources

    OPM manual – 6. Chemical control of larvae

     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 year, so it is important to […]
  • Tools and Resources

    OPM manual – 3. Management zones

     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 area where OPM is established in the South […]