woodland

OPAL tree health survey opens

People across the UK are being encouraged to examine the trees where they live, work or go to school as our seventh survey on tree health opens today.

The survey, designed in collaboration with Forest Research and FERA, includes activities such as identifying tree species, measuring height and examining trees for signs of poor health.

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Most Unwanted: pests and diseases

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These are six pests and diseases that could have a very serious impact on our trees.

You are unlikely to find most of them during your OPAL survey, as they are not widespread or not yet present in the UK. But if you do find them, it is important that you take the right action immediately.

If you think you have spotted one of the Most Unwanted, it is essential that you alert Forestry Commission officials through:

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