Tree Frog Forestry News

British conkers getting smaller as infection hits horse chestnut trees

September 17, 2012
Category: Forestry
Region: International

They have blamed the trend on the spread of a pest species which attacks horse chestnut trees (Aesculus hippocastanum). Researchers believe that the majority of the trees in England and Wales are now infected by the leaf miner moth (Cameraria ohridella), the caterpillars of which chew through the leaves. And a study has found that conkers from infested trees are around half the size of those from healthy trees. The study, by the University of Reading and Bartlett Tree Research, involved measuring conkers collected from ten trees.