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RMV... What do you do after?
On Wed, 6 Aug 2003 07:05:36 -0600, "Tim Tompkins"
wrote: RMV can be tranmitted to another rose by the root system if they are close enough that the root systems grow togather. Many plant virus are spread by this means and the only way to ensure that the disease does not spread is to be absolutely certain that the infected plants roots don't involve other plants. Tim Here is what Malcolm Manners says about contagiousness of RMV: "Means of Transmission RM is believed to be non-contagious in the field, except possibly through rare natural root grafts. There is no evidence that it ever spreads naturally in the garden or nursery, or through pollen, seed, or seedlings (2). Extensive tests also have failed to transfer RM mechanically (e.g., on pruning tools, grafting knives, etc.) (3). The only known means for transmitting the disease is by vegetative propagation. Cuttings rooted from infected plants, or budded plants produced from infected scions or rootstocks, will be infected in virtually every case. The disease is systemic, so the entire plant is infected, whether or not all of the branches show symptoms. A plant which is infected at the time of propagation will remain infected throughout its life, and a healthy plant at the time of propagation should remain healthy for its entire life, unless an infected scion is budded or grafted onto it." Thanks for the link, Anne. I guess I am safe keeping my Sonia Rykiel. tim, where do you get this stuff? |
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