Yellow leaves with black spots on bottom branches

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Return to the Miniature Roses Forum | Post a Follow-Up

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Posted by esther_b (My Page) on

Fri, Aug 14, 09 at 18:34

Argh! My mini roses were doing so well this summer, growing like crazy and blooming like nobody's business. Now I see that the middle mini-bush has developed yellow leaves with black spots at the bottom branches, although it's blooming and blooming. What is this??? What can I do to help my poor bush? Thank you.

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RE: Yellow leaves with black spots on bottom branches

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Posted by rosesnpots z8 Tidewater area VA (My Page) on
Fri, Aug 14, 09 at 19:03

Esther B

You do not have the area you live nor the zone you are in but it sounds like your rose has black spot. You can treat it with a fungicide such as Bayer or Ortho for fungus and disease control. Try not to use Bayer 3 in 1 or an insecticide/disease control combos spray. Below is a link that may help you.

Here is a link that might be useful: roses disease info

RE: Yellow leaves with black spots on bottom branches

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Posted by jmac_2008 6b TX (My Page) on
Sat, Aug 15, 09 at 9:11

I also think you may have blackspot. In addition to rosenspots suggestions, I suggest picking off the blackspotted leaves (both yellow and green) as much as possible. Routinely looking for and picking off damaged/diseased leaves has helped limit blackspot on my rose bushes. Of course, a lot will depend on the number of rose bushes and the time you have available.

RE: Yellow leaves with black spots on bottom branches

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Posted by esther_b (My Page) on
Wed, Aug 26, 09 at 13:06

Thanks for your replies. I am in the NYC area. I did a little research online as well as post here, and I conclude it must be blackspot. I meticulously cut off all the affected leaves and their branches and threw them away. I then used a hose (on a hot and sunny day) to spray away all the fallen diseased leaves I could not reach between the rose bushes. I think that knocked out most of it. The roses are flowering their heads off and making many new healthy leaves.

RE: Yellow leaves with black spots on bottom branches

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Posted by rosesnpots z8 Tidewater area VA (My Page) on
Wed, Aug 26, 09 at 18:05

Esther b

So glad you posted a follow up and that your rose is doing so much better.

Liz

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