Disposing of RRD infected canes
sujiwan_gw 6b MD/PA
9 years ago
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michaelg
9 years agolast modified: 9 years agoseil zone 6b MI
9 years agoRelated Discussions
Trying to save them from RRD
Comments (19)Cygon isn't available any longer. It was taken off the market. We don't have an alternative that is systemic in the plants and thus can kill vector mites when they land. There is not anywhere near enough info out there about beneficial predaceous insects...I keep looking. The reasoning behind using wiltproof ties to the way that the flightless eriophyid mites get around- they are dropped by breezes when the breeze slows down. Thanks to the dissertation of Abdullah Kassar at WVU, if they land on a rose, they sense it and stay. If they land on a non-rose they try to catch the next breeze away. What we hope is happening with the wiltproof and other anti-transpirants is that they land on the wiltproof and reason "not rose" and leave. So as to how often to spray wiltproof...you'd like to keep the leaves and stems coated. Spray accordingly....See MoreIf you discovered RRD infected canes in your rosebushes...
Comments (11)Question: "If you discovered RRD infected canes in your rosebuses and you could find no sourcepoints for the infection in the neighborhood, would you stop adding any new roses to your property?" My answer: No, I'm still planting roses, and in my instance I know the source points and can't eliminate them. Up wind from out my front door and across open pasture is a tree line (about 1/4 mile away) that is a mess of invasive exotics and I know for a fact there are multiflora with raging cases of RRD in there. I can't do anything about the tree line, but I have cleared out all the multiflora within 150 yards of my house and gardens. In four years I've had one case of RRD. I caught it very early and since it was a rose isolated away from my other gardens cut the cane down to the ground, but I'm prepared to be even more ruthless if a rose in the gardens falls victim. I do what Seil suggests: grow roses and hope for the best....See MoreNew rose rosette virus fact sheet (back to prunning infected cane)
Comments (13)As the originator of the one cane removal technique, I can tell that it works sometimes. Sometimes is a whole lot better than never. One scientist has said to me that how can you tell it doesn't come back. I have responded to him, after ten years of good healthy growth, that should be enough. I don't think it works for fall infected hybrid teas as I didn't save any of mine that got fall infections that I saw the following spring. The other thing I do is check with a microscope to see if the infected bush is teaming with eriophyid mites. Mine aren't. I don't use insecticide or acaricides and I see beneficials at the microscopic and visbile to the naked eye sizes. Here's my ebook about RRD/RRv for those who haven't seen it before. Rose Rosette E-book Ann...See MoreObservations upon digging up RRD infected plant
Comments (8)For hose of you that have RRD, make sure to cover the plant with a plastic bag before you dig it up. This will stop the spread of live mites. Make sure to remove all pieces of root. Do no replant for at least 2 years. With RRD the mite is the carrier, and it spreads a virus to the plant. The virus moves slowly. IF you walk your roses daily, you can spot subtle changes in your plants. It is possible to just remove a cane if the disease is just starting. Just put a plastic bag over the cane. Remove the entire can to the bud union. Over the summer I saw a plant that could have been saved by this treatment. Then in another town I saw an entire bed of Knockout roses fully infected. I told a gal to remove the one bad plant, but they didn't do it. So they lost 20 bushes! I inspect a lot of bushes everywhere I go. Education is the key to stopping this. Let everybody know, if they see funny spots on their plants seek help from a Extension Service Adviser. Of find a local Consulting Rosarian from the American Rose Society...See Morediane_nj 6b/7a
9 years agosujiwan_gw 6b MD/PA
9 years agojkellydallas
9 years agoKarenPA_6b
9 years agosujiwan_gw 6b MD/PA
9 years agolast modified: 9 years agoPatty W. zone 5a Illinois
9 years ago
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