Roses forum→Strange new shoot and leaf growth

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Gerkie83
Jan 26, 2021 1:16 AM CST
I noticed some odd shoot and leaf growth on some of my roses about a 1.5 months ago, some leaves look small or thin and sometimes extremely curled, shoots look pale, there are more shoots at a time than usual and there is excessive thorn growth. I took a cutting to a gardening center near me and they told me that it was most likely Powdery Mildew as some of my plants were showing signs (and it causes leaf curl). We had a lot of rain and heat over that time which caused some black-spot too. I treated all my roses (no white marks or black-spot on leaves anywhere after a few days) but the problem persisted. Now, January is middle-late summer here in ZA, so I summer pruned my rose bushes before autumn in a couple of months time. My bushes have started growing back, but the strange growth has also reappeared, this time randomly on even more bushes. I am really concerned. I've watched a lot of YouTube videos and it looks similar to Rose Rosette in many ways... but every single person I've spoken to dismisses it outright and swears it only occurs in the US. Does anyone perhaps have any insight into what's going on? The plants adjacent to the affected bushes are all growing just fine and are looking healthy. I can't risk it spreading to my other plants if it is a virus of some sort. I need to take action now. Thanks!

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Name: Lola
Tasmania
Keeps Sheep Roses Cottage Gardener Garden Photography Birds Farmer
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LolaTasmania
Jan 26, 2021 4:38 AM CST
Someone here will be able to tell you what it is, but that someone isn't me. I'm just here to say I think that second photo is the stuff of nightmares. Those leaves look absolutely carnivorous! Welcome!
Name: Rosemary
Sacramento, CA (Zone 9b)
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reh0622
Jan 26, 2021 10:58 AM CST
To me it looks like a combination of usual old and new rose attacks--powdery mildew, and mites, but not RRD. I hope it gets better as the season progresses for you!
Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Dog Lover Region: Texas Salvias Roses Hibiscus Plumerias
luis_pr
Jan 26, 2021 1:32 PM CST
I do not see the out of control growth of RRD although I admit the thorns in Picture 3 made my fingers twitch! Ouch! Sticking tongue out

Leave it "under observation" if you wish for a few more weeks. Here is more info from the American Rose Society:

https://roserosette.org/

Click on "Do your roses have RRD?" to watch a video showing pictures of sick roses. RRD typically displays a plethora of symptoms and the presence of various ones or all of them then suggests RRD. A single symptom by itself, such as reddish leaves, is normally not a diagnosis of RRD.

Gerkie83
Jan 26, 2021 3:16 PM CST
Thanks for the feedback guys!
SW Ohio River Valley (Zone 6b)
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vaporvac
Jan 26, 2021 5:51 PM CST
Have any herbicides been used nearby?
Name: Audrey
NY (Zone 6a)
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Rosykittycat
Feb 12, 2021 8:55 PM CST
Hi, Gerkie,

It may be it is just struggling to grow and will recover. Check out RRD as Luis suggested, also.Best Wishes.
[Last edited by Rosykittycat - Feb 12, 2021 11:25 PM (+)]
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