British Wildlife 22.5 June 2011

The Horse-chestnut Leaf-miner and its parasitoids

Something dramatic is happening to Britain's Horse-chestnut Aesculus hippocastanum trees. Ten years ago they held green leaves throughout the summer, until the leaves browned and fell naturally in October or November, like those of most broadleaf trees. That pattern is now a thing of the past in many parts of Britain, with damage, brown-leaved Horse-chestnuts becoming a common sight by mid-August. 

Through a naturalist’s eyes
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