black spot disease injured rose leave |
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| navigate by keyword : are background black can caused closeup common damage diplocarpon disease diseases does everywhere flower found fresh fungal fungus green injured kill leaf leave leaves loss making marssonina more most natural nature not one other outright plant planted rosae rose roses spot spots stresses susceptible time weaken winter |
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| Black spot is caused by the fungus, Diplocarpon rosae. It is one of the most common diseases found everywhere roses are planted. The disease does not kill the plant outright, but over time, the loss of leaves can weaken the plant making it more susceptible to other stresses and winter damage. |
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