Black Spot
By Tinkerbelle
Somerset,
United Kingdom 
Does anyone know of a good organic remedy for Black Spot on roses? I really don't want to resort to nasty chemicals. Advice welcome.
8 Aug, 2008
You may be able to reduce it for next year by removing all leaves in the Autumn, both from the bush and from the ground beneath. In Spring if you see it appear remove any leaves that show signs of it. It overwinters on the old leaves, but is also probably spread by Aphids etc.
8 Aug, 2008