Question about Rose Mosaic Virus
Lisa Adams
6 years ago
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Comments (51)
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Question about rose rosette virus
Comments (27)My sympathies as I have also lost favorite roses to this horrible disease. This weekend I was at the District Conference for the ARS and there was much talk about RRD and other pests and diseases. The term we loved was 'be a tall shadow in your garden' meaning be a presence there to look over everything. We all get busy, lazy, sick, hurt and can't be out there all the time. But when we can we need to be aware of what it looks like normally so we know when something is not right. I was able to save one bush by noticing some weird growth at the tip of a cane, which I cut out. 3 years later, and so far no more signs of RRD on that bush. This fall I found some suspicious growth on another rose, so I cut out that cane. Time will tell. If Little Mischief looks ok, then you can plant next to it. I would think all of the mites are dead or dormant at this time of year. But watch Little Mischief very carefully when it comes out of dormancy in the spring. That is when RRD can show up....See MoreCould this be Rose Mosaic Virus, or something else?
Comments (11)The rose slugs I have can be seen on the underside of the leaf. When they're big enuf. The young ones rasp away a layer of leaf and as they grow they eat all the way thru, leaving only the veins. Leaf miners leave a pattern like above. They do not skeletize leaves like rose slugs do. Just more tunnels appear. Sometimes holding a tunneled leaf to the sunlight will show a dark spot at one end of a tunnel. That's the leaf miner....See Morerose mosaic virus - is everything infected?
Comments (25)In case the other readers did not open the link. The Canadian link by the Niagara Parks Horticulturist ("The Niagara Parks Botanical Gardens is known world-wide for its incredible rose garden. You’ll find over 2,400 roses on display here.") She stated: "Clean and disinfect your pruners between plants if you have noticed any signs of rose virus – mottling and unusual colorations in the leaves." She is in a northern climate. I agree with your fellow Canadian's recommendation that you use separate pruners on infected plants. But, be aware that not all virused roses show symptoms frequently so you are still running some possible risks. I say possible because I am not aware of any research concerning pruning spread in northern climates. I feel that hot weather research may not apply due to the roses having a temperature dependent immune system against the common rose viruses. My article on what is known about the temperature dependence is at: https://sites.google.com/site/temperatureandrosemosaicvirus/home --------------------------------------------------- I mainly discussed PNRSV, but one of the other common rose viruses ApMV is recognized as having a similar temperature dependence: " " It was reported that plant defense mechanisms that specifically target viral RNA (silencing) are more active at high temperatures (Szittya et al., 2003; Chellappan et al., 2005). Therefore, the combination of this factor with the alleged lower viral replication during the hot months of the year may explain the differential virus behaviour throughout the year. " http://www.fupress.net/index.php/pm/article/viewFile/16295/16994...See MoreIs this rose mosaic virus on a David Austin rose???
Comments (8)What temperature zone are you in? Roses have an immune system that is more effective against some of the common rose viruses at high temperatures. Without knowing where you live and which actual virus (or viruses) your plant has (plus which strain you have, strong or weak), one cannot predict whether your infection is simply a cosmetic problem or could affect your plants growth and longevity and possible spread to your other roses. This is the most recent paper that I could find (see page 17 about roses in Table 1): https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-05-20-1061-FE The affiliations of the authors in the above paper are: Authors and Affiliations M. Fuchs † , School of Integrative Plant Science, Cornell University, Geneva, NY 14456 C. V. Almeyda , Micropropagation and Repository Unit, North Carolina State University, Raleigh, NC 27695 M. Al Rwahnih , Foundation Plant Services, Plant Pathology Department, University of California, Davis, CA 95616 S. S. Atallah , Department of Agricultural and Consumer Economics, University of Illinois, Urbana-Champaign, IL 61820 E. J. Cieniewicz , Plant and Environmental Sciences, Clemson University, Clemson, SC 29634 K. Farrar , Foundation Plant Services, Plant Pathology Department, University of California, Davis, CA 95616 W. R. Foote , Crops and Soil Sciences, North Carolina State University, Raleigh, NC 27695 D. A. Golino , Foundation Plant Services, Plant Pathology Department, University of California, Davis, CA 95616 M. I. Gómez , Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY 14853 S. J. Harper , Department of Plant Pathology, Washington State University, Prosser, WA 99350 M. K. Kelly , Department of Agriculture and Markets, Division of Plant Industry, Albany, NY 12205 R. R. Martin , Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331 T. Martinson , School of Integrative Plant Science, Cornell University, Geneva, NY 14456 F. M. Osman , Foundation Plant Services, Plant Pathology Department, University of California, Davis, CA 95616 K. Park , Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, NY 14853 V. Scharlau , Washington Wine Industry Foundation, Cashmere, WA 98815 R. Smith , University of California, Cooperative Extension, Sonoma County, Santa Rosa, CA 95403-2894 I. E. Tzanetakis , Department of Entomology and Plant Pathology, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701 G. Vidalakis , Department of Microbiology & Plant Pathology, University of California, Riverside, CA 92521 R. Welliver , The Pennsylvania Department of Agriculture, Bureau of Plant Industry, Harrisburg, PA 17110 ----------------------------------------------------------------------- The following is a more complete discussion of the temperature effect (which applies to some of the rose viruses): https://sites.google.com/site/temperatureandrosemosaicvirus/home...See MoreCori Ann - H0uzz violated my privacy
6 years agoLisa Adams
6 years agolast modified: 6 years agoLisa Adams
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6 years agoAquaEyes 7a NJ
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6 years agoLisa Adams
6 years ago- Lisa Adams thanked comtessedelacouche (10b S.Australia: hotdryMedclimate)
henry_kuska
6 years agomalcolm_manners
6 years agoClaire8WA
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6 years agolast modified: 6 years agojerijen
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6 years agolast modified: 6 years agoLisa Adams
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