A grey wart on the side of a tree that can range from the size of a golf ball, if not smaller, to things that are almost a couple of foot in size. But it is the moth’s caterpillars, with their thousands of tiny hairs, that are the hazard. Touching the caterpillars or their nests can cause skin rashes or, in extreme cases, sore throats, breathing difficulties and eye problems.
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- British forests under new threat from pests The BBC reports on another thread to the oak trees of the sceptred isle.