RMV in some roses from this year

Deficiency versus RMV, as I said to Wedge on a different matter, pictures that have been recorded of both could be misconstrued as either one, Yes I am sceptical, but open minded to. Simon who is the leader in the field on RMV and how do I find papers written by him, I am not saying it does not occur.

Back shortly, have to feed Benny the goat.

I tried ringing Mistydowns once before Christmas but they weren't there. But I will ring in the new year.
As the roses I want this year comming are probably not available at any other mail order rose nursery, I have to hope these roses are clean of virus or that most of them are. I would rather have the virused rose here than not have the rose at all. Hopefully the virus doesn't have much effect here over the years seeing we are a warmer climate. Can a rose fight this virus and eventually have a immunity to it ? Or the roses that survive it are the naturally selected ones to go on with.
I would pay more for a rose that had been cleared of Mosiac Virus. It must be hard for the growers as they must test all their rose varieties to be sure, heat treat the ones that have it and then re test, plus keep their rootstocks clean. As well as all the rest that goes along with propagating and selling roses.

Nope - once it has it... it has it for good. There are resistant varieties... but none that are immune. I would also argue that we shouldn't be trying to breed resistant ones. We should be trying to erradicate it instead.

I do not know how to to take part of what someone has written so this is from Karen's post at 10.30 today.

Can a rose fight this virus and eventually have a immunity to it ? Or the roses that survive it are the naturally selected ones to go on with.

After reading a link that Simon, posted on "Inheritance" do not quote, cause I again do not know how to find it at present. The paper or talk was by a fellow named Vanderplank, I think he has gone further than "Mendel" has, although he uses words that are not in common use to the general public (my words), makes good scientific papers, Mendel used new words for the first time and people did not understand and I think Mr Vanderplank has to, I assume we will get used to them as we do over time.

The short of this is, if I have not read his article wrong, he is thinking along what Karen has said, as I read it, breed with it to, at the end breed it out, again only my thinking on this.

Update on Bruce's Peace. I checked a 4 year old budded 'Peace ' plant taken from the original plant and it is showing some sign on the old leaves where RMV usually appears first. The rootstock has never had RMV or been budded before, I am sure it's in the Sion ( Peace Plant)

So the search goes on to find one not infected, possibly the one at Gulgong or Woodstock. A very knowledgable rose grower once told me that they were all infected and I am inclined to agree.
Simon may be the first if he gets the thermal cabinet up and running. His plant is supposed to be a dud so I suspect RMV because there are two we know of that are very worthwhile.

RMV is just so hard to diagnose for some plants don't show it until stressed. I can understand plants being sold thinking they are healthy so don't be too hard on the nursery. I only budd 200 a year so can keep an eye out for the problem but wonder how these large nurseries check for this problem. I think the only way to judge is if they sound concerned when it's reported then I consider them a tryer to sell quality plants. However if they give an indifferent reply and do nothing then I wouldn't buy plants from them again.

Hi Bruce, I will look at the Peace bush tomorrow, have a close look at the leaves.

I'd love to help.. but my 'Peace' doesn't have any leaves to check

When looking at "Peace" do not forget it is born with "BLACK SPOT", IMO

Late this afternoon I was dead heading my Summer Fairytale Weeper ( aroud 5 years old and I found Mosiac Virus on its leaves. Its pretty sad to have this on your weeper when you have paid $65 or $75 for one. My weepers were from T***** . I have seen the virus on my Fairy weeper in the past too. I will take some photos of it tomorrow.
Bruce, this might have been one of the ones you were talking about in the budwood I brought or sent you.
Simon, where are the Mosiac photos you have here ? I can't find them.

I was thinking, there is no excuse for any new release rose from any rose supplier to have Mosiac virus. The parent rose is born without the virus, all that has to be done is to bud onto clean rootstock. Simon, have you had any new release rose with Mosiac virus yet ?

I am going to email T***** about my weepers having Mosiac Virus and ask what they are doing about it these days. I will check the other weepers tomorrow before I do.

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It's because there is such a dependency on 'Dr Huey' here in Australia. If growers used multiflora then they could obtain clean understocks without any trouble at all by growing them on seedlings. I have received quite a few recent releases with RMV. The most recent of these is the new Tea bred by George Thomson called 'St Francis Xavier'. Better still... if breeders chose roses that grow well on their own roots and then growers grew stock by cutting then there would be no RMV... period. Eliminate the need to graft and you eliminate the virus. This is why I hate to see it in my minis because most minis grow extremely well on their own roots... why on Earth would someone graft them (of course I know the answer to this... because the bottom line isn't necessarily quality... it's more driven by quantity ). Some growers are addressing this problem. Andrew Ross, of Ross Roses, informed me that they were reviewing their stock list to contain mostly roses that grew well on their own roots and starting next year (I think that's right... I'll have to go back and check the email) they will have stock available as own root plants instead of grafted. So... if we get in and clean infected stock now, and switch to majority own root production and set up a rigorous 'Dr Huey' indexing system them maybe we can get on top of it.

Karen... see the link at the top of the page that says 'Gallery', click on that. Then you will see a folder that says 'Rose Image Bank'. Click on that. In there you will see another folder that says 'What does RMV look like?" CLick that.. there's only a few images in it at the moment... I'll add more as I can. Feel free to add some of your own as well.

This week I noticed RMV water marks on a 4 year old Peace plant taken from my original that had previously thought to be healthy. I don't think there is anywhere to hide.
I have heard that all Peace plants have RMV except for the occasional one that seems twice as good as most. I know where there is one so had better get out there fast.

Fortunatly my Multiflora rootstock is virus free. The mother plants are kept seperate and never budded on. They are cut, taken to the propagation site , planted and budded 3 months later.

I was having a look at fertilisers on the net and came across a US fertiliser company that made reference to RMV.
They mentioned that 50% of roses in nurseries and rose propagation farms
had a virus of one type or the other, RMV being the most common.

This subject is annoying to me. Show me some other results other than the GREAT America. Can someone get some from Germany (maybe Bemo) or France, possibley Great Britain. Can ANYONE show me where or how this "VIRUS" started.

Rosemeadow, you hit the nail on the head by mentioning T*****. They were our main suppliers this year and were the 2 types of roses that had the RMV that I threw out came from. (Incidentally Im pretty sure a few other varieties had it too including Peace but it wasnt as obvious and gave them the benefit of the doubt) I didnt want to 'name names' at the time but if they realise that people are talking about it then maybe it will help them to decide to do something about the problem?

Admin. Edit: Please note this excerpt from the terms of use:

8. To avoid issues of possible slander, members are asked to refrain from mentioning by name any individual, business or organistion in any way that may possibly damage or restrict their ability to conduct their affairs. RT is moderated by volunteers and every effort will be made on the part of the Administration and its Moderators to remove such posts but we are not online all the time and as such we monitor the traffic in all the forums as time permits. Please report anything that you feel contravenes any of these terms of use.