While the leaf miner does not kill trees, there is a serious bleeding canker
disease that does.
Ken Simons, Warwickshire County Council's forestry officer, said: "The wet start to the year has had a severe impact and this is coupled with many of our common horse chestnuts suffering attacks from a range of pests and diseases, namely bacterial bleeding canker
, leaf miner and leaf blotch.
Horse chestnuts are being hit by leaf miner and bleeding canker
," said Simon.
Half the species' estimated one million trees could already be infected with a condition known as bleeding canker
Hilary Makins, head warden of the estate, said: "The crowns and bark are dying and there is the tell-tale black sticky exudation oozing from the trunks, which sadly indicates the presence of bleeding canker
CAMBRIDGE, England, February 13 /PRNewswire/ -- Horse Chestnut Bleeding Canker
, caused by Pseudomonas syringae pv.
In recent years a number of devastating problems have hit our chestnuts including a Bleeding Canker
that gradually kills the tree, a scale insect that spreads rapidly and a leaf miner that has come to us from Southern Europe over the last 8 years.
Some one in ten of Britain's horse chestnut trees is also infected with an incurable disease called bleeding canker
An average of 49% of the trees inspected displayed symptoms that indicate or might indicate bleeding canker
HIT FOR A SIXER: As we enter the conkers season, horse chestnuts across Britain are facing two threats - the miner moth and bleeding canker
Up to 20 horse chestnut trees on the site will be felled after experts diagnosed bark cracking and bleeding canker
Simon, who is currently running a course this term called the Secret Life of Trees, adds: "We also need to make people aware of the threat to horse chestnut trees from a disease called bleeding canker
and a serious new pest, a leaf miner.