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Old 28-09-2009, 03:00 AM posted to rec.gardens
Sarah Austin Sarah Austin is offline
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First recorded activity by GardenBanter: Sep 2009
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Default Diseased cottonless cottonwood???

http://www.ext.colostate.edu/pubs/garden/02920.html

Looks like the Septoria fungus.

Now doesnt fungus need alkaline conditions?

I'm wondering of coffee grounds might make the soil acidic and get rid of
it.