What am I looking for?
The damage caused by the leaf-mining moth is often obvious, but it can be confused with other types of damage. The photo gives a guide to its identification.
Survey trees in your area - anywhere in the UK -
for invading alien moths
Your mission in brief:
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Find a horse chestnut tree (see here for help with tree identification).
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Look at the leaves near the bottom of the tree: can you see whitish blotches, made by the alien moth?
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Find out the nearest postcode or write down the location so you can find the tree on a map.
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Use the detailed instructions to decide how badly affected your tree is.
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Submit the information to our database, even if your tree is not infected.
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New! You can now part in the Mission: alien moth survey with our Leaf Watch app for iPhones and Android smartphones.
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The tiny moths are well camouflaged against bark
(photo: Grahame Madge)
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