The Leaf-Miner Hunt

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The Horse-Chestnut Leaf-Miner (Camararia ohridella) is invading Britain and I need your help. This tiny moth lays its eggs on the Horse-Chestnut leaf and the caterpillar eats the leaf from the inside.

I need everyone reading this in the UK to go out on Saturday the 25th June 2011 and look at their nearest Horse-Chestnut tree.

Take a look at one of the middle 'fingers' (leaflets) of 10 individual Horse-Chestnut leaves and count the 'mines', these will look like little brown circles or lines (shown below). When held up to the light they are easier to see. If there are no mines this is also important information.

Please record this number (10 leaflets from every tree you find) and send them to me with the location (post code, or map reference) of the tree.

Please enter a whole number (even if there are no mines = 0)
This could be a post code, map reference, GPS location etc.
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