UK horse
chestnuts have suffered increased levels of attack from
the horse chestnut leaf miner, Cameraria ohridella, and from a
fungal pathogen causing stem bleeding, commonly known as
bleeding canker. Follow the links below for more information
and advice on disease management.
Horse chestnut leaf miner
Causes leaf damage, as the larvae of Cameraria ohridella mine
within the horse chestnut leaves. Severely damaged leaves shrivel
and turn brown by late summer and fall early, well before normal
leaf fall in the autumn.
More information about horse chestnut leaf miner (new
window) from the Forest Research website.
Horse chestnut bleeding canker
Produces symptoms which include bleeding areas on the stems and
sometimes on scaffold branches.
More information about horse chestnut bleeding canker
(new window) from the Forest Research
website.