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  2. Jul 7, 2023 · Get to work diagnosing the problem with this basic guide and pictures of tree diseases and pests that are common and plague a wide range of species. You'll find comprehensive details about visible damage and control measures to help you understand what is troubling your tree.

  3. Aug 18, 2020 · Conservation adviser - tree and woodland health. Trees are under pressure from a variety of stressors. And although a single issue may cause the poor health of a tree, there are often several causes, from drought and flooding to pests and diseases. Here are some of the most common symptoms to look out for on trees in your garden or local area ...

    • How do you know if a tree has a problem?1
    • How do you know if a tree has a problem?2
    • How do you know if a tree has a problem?3
    • How do you know if a tree has a problem?4
    • How do you know if a tree has a problem?5
    • Specific Tree Pests and Diseases
    • Identify by Tree Species
    • Request A Diagnosis

    If you know the name of the tree pest or disease affecting your trees, see the Forestry Commission guidance giving detailed information on specific tree pests or diseasesknown to be present in the UK. You can also find out about those that pose a potential risk to the UK but are not present yet.

    If you’re unsure what’s causing the problem, use the alphabetical table below to narrow down the options for the relevant tree species and find out which pests and diseases can affect it.

    The information in the table above is not exhaustive. You may discover a different pest or disease attacking your trees and you should report it or request a diagnosis from Forest Research’s Tree Health Diagnostic and Advisory Service.There might be a fee for this service.

  4. Apr 19, 2017 · A telltale sign your tree has a problem is a dearth of leaves when it is supposed to be covered with them. Moreover, dead branches can indicate that your tree is suffering from a serious root and trunk problem.

    • Thinning leaves. When you stand under the tree, can you see blue sky? The crown of the tree is at the top; made up of both leaves and branches that offers shade to the roots whilst absorbing the energy from the sun.
    • Discoloured leaves. You can tell a lot about the tree from the colour of its leaves. Leaves are a fundamental part of your tree. They help convert energy from the sun into nutrients.
    • Crown die back and dead wood. A healthy tree should put on new growth every year, getting bigger in both trunk and branch size. Have a look at the branch tips on the crown of the tree.
    • Dead, flaking bark. Did you know that trees can bleed? The bark protects the tree from lots of external stresses like storms, pests and diseases. If there’s a sappy-like liquid oozing from the bark at the stem, or trunk, then that might tell you there’s quite a problem within the cambium (a layer of tissue that helps the tree grow by adding another layer of wood).
  5. Pest or Disease Specific Reports. Submit a report of a specific tree pest or disease that you have seen. Diagnosis Service. If you own or manage trees you can request a diagnosis of a pest or...

  6. Increasing numbers of pests and diseases are attacking the UK's trees. Some with devastating consequences. Learn all about them here, with symptoms, outlook and how you can report them.

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