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old roses

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knowlittle | 12:34 Fri 04th Sep 2009 | Gardening
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I have a number of 15 year old roses that have black spot on leaves I have sprayed & collected old leaves but condition remains, if I move roses to a new area and prune hard would this clear the black spot.
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The soil for roses need to be changed for new about every four years as it becomes diseased, but do move them to a area where roses haven`t been for several years. Treat the old soil with Jeyes Fluid as directed on the tin.

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old roses

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