Mission: alien moth survey
Survey trees in your area - anywhere in the UK - for invading alien moths
What are you looking for? The damage caused by the leaf-mining moth is often obvious, but it can be confused with other types of damage (see the photo below).
Your mission in brief:
Download detailed instructions
Check out the identification of the alien moth damage. The damage labelled as 'not a leaf miner' is actually a fungus (called Guignardia) that was introduced by accident, but does not seem to do the trees any harm. It is most prevalent in autumn.