An enormous tree might be infested with about 2m of those tiny leaf miners, simply one in every of a number of new pests attacking British woodlands
The autumn tree colors are showing, however all will not be fairly what it appears. Horse chestnut leaves began falling weeks in the past like crispy brown items of paper, an indication of leaf miners infesting the bushes.
These are the caterpillars of a tiny moth, and a giant tree might be infested with about 2m of those pests, which weakens the tree. Much more pernicious is a illness of horse chestnuts known as bleeding canker, which may kill the tree.