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paula_andrews30

SEVERE black spot on knockout rose bushes

paula_andrews30
9 months ago

Help!

A few weeks ago i noticed some black spot disease in my rose bushes. i pruned back the damaged leaves and sprayed all the bushes in my rose garden (17) with fungiside.

long story short, i returned home from vacation to find that about 85% of each bush is totally infected. So my dilema is this…

Do i cut back all the bushes? It would be a hard pruning. i do have flowers and buds but not good quality. I normally have blooms through September with regular deadheading.

The bushes look horrible but I’m unsure as i do have roses.

thank you!

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