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| I have a few easy to grow Roses in my yard and I think 3 of them have Rosette disease. I diagnosed this from pictures on the internet. I hope, hope, hope I am wrong. Does any other disease resemble Rosette disease? Is the only solution to destroy them? If I have to remove them how long before I can replant another Rose in its place? Thank you for all your help. |
Follow-Up Postings:
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| Can you post pictures of your roses that you think have RRD? |
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- Posted by henry_kuska z5 OH (kuska@neo.rr.com) on Sat, May 31, 14 at 21:50
| Do you use a weed killer? Do you have a lawn service that utilizes a weed and feed type product? The same type of questions for your close neighbors? If only one cane of any of the infected plants is infected, you can try cutting that cane off at ground level. For those with more than one cane infected, you probably should remove them unless you answered yes to the weed killer questions. Pictures may or may not be useful in distinguishing between weed killer and rose rosette virus damage because weed killer damage can be both concentration and actual chemical dependent... |
Here is a link that might be useful: My rose rosette web page
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- Posted by bloombuddie z6 OK (My Page) on Sat, May 31, 14 at 22:09
| I will post some pictures of the affected canes tomorrow. Unfortunately, I'm sure it is not weed killer. Thank you for the advice. Tomorrow afternoon I'll have a good look at the Roses and check to see how many canes are involved. Really helpful rose rosette web page! I appreciate the time and effort it must have taken to put it together. |
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- Posted by bloombuddie z6 OK (My Page) on Sun, Jun 1, 14 at 20:53
| I take back my statement about weed killer after reading more closely the webpage on rosette disease. It is possible that in spraying to kill some Wisteria popping up here I put some round up on ground near the roses. Here are 4 pictures:
Thank you for your time! Ann |
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| Looks like RRD to me. After you have completely destroyed the entire plant (including roots), you can plant another rose any time you want. Kate |
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| Oklahoma is having a rough time with RRD. The Tulsa Rose Garden has almost been destroyed by the disease. I have discarded many roses because of it in the past, and I will not take a chance now. Even if you used a weed killer, you are taking gamble that the cause is the weed killer and not the disease. You also need to consider where you purchased the roses. If it was a reputable nursery, you might ask them if they had a problem this year. if you purchased them from a discount store, you know that there is no history. For me, I would trash them immediately. Good luck. Sammy (Tulsa, OK) |
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| RoundUp can cause that kind of stringy growth, especially in spring after the plants were dosed the previous fall. Green canes as well as leaves can absorb it. In some soils, especially sandy acid ones, it can be taken up by the roots. How many canes on how many roses have the symptoms? When did you first notice symptoms? RRD always begins on one cane and spreads slowly. It takes weeks for it to spread at all. If you had been monitoring the plants fairly regularly, and if symptoms suddenly appeared all over the plant (or on several plants), then it is likely herbicide damage, If I were unsure, I would cut the affected plants to the ground (or the graft) and carefully bag all the cuttings to capture any RRD mites. This would stop any spread at least until the plants grow out. |
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- Posted by bloombuddie z6 OK (My Page) on Mon, Jun 2, 14 at 11:29
| These Roses I've had for about 10 years and haven't added any new roses for 3 years or so and neither have my neighbors. The deformities all showed up this spring as new growth began. The Roses are all in the back yard but at least 10 feet from each other. Does this info give any sway to round up being the cause? |
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| The point Michael was trying to make was that Round up damage would be an "all at once" type reaction--outbreaks in a number of different places around the bush occurring over a small period of time. Whereas RRD damage goes slowly, starting out on ONE cane and later gradually spreading to a second cane--slowly spreading over a period of time one cane at a time usually. Does one way or the other more closely describe what your roses did? Or were you not watching the roses closely and therefore didn't notice anything until a good portion of the rose was infected? By the way, you do know that RRD is spread by very very small mites, don't you? A breeze can pick one up and land it half way down the block where it can infect a rose there. Whichever way it is, good luck. Kate |
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| If you had no symptoms last year (and you were looking at the roses once in a while), and three bushes showed symptoms this spring, then it is probably herbicide damage. Roses can recover from this but it may take a year or two. |
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| Unfortunately for me, my mature Elina showed a few symptoms last year and I convinced myself that stringiness was probably caused by the neighbor using Round Up. But this morning when I checked that bush, I see the "stringiness" is in many places on the bush. Think its time to declare it RRD and dig it up--which nearly breaks my heart since this was a mature and well-blooming rose for the past few years. I have a small one I can move over there, so the color design in that narrow bed won't be ruined, but a 1 foot Elina in place of a 6 ft tall one--maybe nearly 4 feet wide--will probably be a noticeable difference, don't you think? Kate |
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- Posted by henry_kuska z5 OH (kuska@neo.rr.com) on Mon, Jun 2, 14 at 14:17
| michaelg is correct for normal herbicide spray damage; but if the herbicide is picked up by a root, the damage could be more local. (This is not written for your case, but for other readers who may have a problem in the future.) |
This post was edited by henry_kuska on Mon, Jun 2, 14 at 14:18
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| If you or a neighbor (which is what happened to me) sprayed any kind of herbicide OR used a weed and feed on the lawn it's probably that. Don't be fooled into thinking that if you didn't spray it it can't be that. Herbicide sprays can travel a long way on any kind of breeze. Unfortunately most people are not any where near as careful with the stuff as they should be. My neighbor was spraying for poison ivy in his yard and hedge but he never bothered to check on wind conditions before hand, he just sprayed when and where ever he saw it. He never told me until after I found the damage on my roses. Like you I freaked out and thought it was RRD. Until I spotted him out there spraying on a blustery day! After talking to him I realized what had happened. His hedge is a good 30 or 40 feet from my rose bed but the prevailing winds come from that direction and it was blown all the way into my bed. I lost a few other perennials because of it too. Now he knows to let me know when he's going to spray so I can protect my roses. |
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