Channel Isles,
United Kingdom 
My Amelanchier lamarckii has grown into a tree which is about 9' tall. For the last few years the leaves have turned mottled and crisp, so I believe this to be some kind of disease. It doesn't harm the tree but does look unsightly.
Can anyone advise what I can spray onto the leaves now that the blossom has fallen.
Also are the black berries edible, because this needs to be borne in mind if I need to spray the tree.
3 May, 2010
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Not sure what the infection is, if it is that, a photograph of the problem would be useful. As for the berries, I'm not sure whether they're edible or not, but certainly I have never heard of anyone eating the berries, nor growing the plant as a food crop.
3 May, 2010