Black spot
Does anyone have any 'pet' methods for dealing with black spot on roses
or are the commercial sprays adequate? I am in Scotland which has a fairly wet atmosphere so keeping the leaves dry and not allowing the soil (where I believe the spores 'live')to splash up is pretty much a non starter. Rose is in a flower bed so I would think mulching the soil is not really a goer, but then I am no gardener (it's my son's garden)so wouldn't really know. |
Black spot
soup wrote:
Does anyone have any 'pet' methods for dealing with black spot on roses or are the commercial sprays adequate? I am in Scotland which has a fairly wet atmosphere so keeping the leaves dry and not allowing the soil (where I believe the spores 'live')to splash up is pretty much a non starter. Rose is in a flower bed so I would think mulching the soil is not really a goer, but then I am no gardener (it's my son's garden)so wouldn't really know. Never had it in towns in the 50s, the old smog dealt with it marvelously, chimneys belching out hi concentrations of sulphur dioxide. I was a young apprentice in 1954 in the chemistry laboratory of a coal power station in Liverpool. If I remember rightly the plume down wind of our 3 chimneys (The three sisters) generated in the centre, a deposition of soot of approx 50 tons to the acre. Suggest you use flowers of sulphur or a copper based fungicide. Don -- Bold is Brown with the People's Purse. (loosely translated from a Welsh couplet "Hael yw Hywel ar bwrs y wlad") |
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