Rose Mosiac Virus @ K&M Roses
arcus_85
9 years ago
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arcus_85
9 years agoRelated Discussions
Yellow leaves on Peace Rose
Comments (10)Neurotic, I would think the main concern is the nearly pure, composted horse manure you've planted in. You would be MUCH safer using a traditional potting soil in those pots. The composted horse manure is wonderful stuff for garden use, but it can easily be too moisture retentive for pot use. Consider it an amendment, even mulch, but not a planting soil. It probably doesn't have the right texture to hold the roots and water properly. Soil has to have varying sizes of particles to permit air and water to circulate properly. Otherwise, it can become either too wet or have pockets which are too dry and the roots won't perform their appointed functions properly. If the mixture is too light, it will inhibit root growth because there is too much air and not enough solidity for the roots to hold on to. Trying to transplant the bushes when it's time can easily result in the soil ball disintegrating instead of holding firmly together. If the mix is too heavy and dense, it can hold too much water and insufficient air. That can easily "sour", forming hydrogen sulfide instead of containing oxygen. You might poke a thin bamboo stake into the cans around the perimeters then pull it out and smell it. If you detect a sour smell instead of the expect damp soil scent, the mix is rotting and the plants will fail. If it smells as expected, that hasn't happened. It doesn't mean it can't, just that it hasn't yet. You can also poke a finger into the drainage holes around the pots to check for the sour smell. You've probably smelled that smell when un potting plants which have been over watered, sat in too deep saucers of standing water or others which have stopped draining. I seriously would not begin adding fertilizers to those pots at all. I'm genuinely concerned what you describe as the planting medium is improper and can result in problems. I feel you would be much safer diagnosing whether you detect any soil souring first, carefully watering and continuing to check for souring once or twice a week until you're confident the pots are sufficiently developed to permit planting out in the garden. I'd get them in the ground and settled before adding any fertilizers. That horse manure compost won't move the salts from the fertilizers like decent garden soil will. It can absorb too much which can burn the new roots, which are very likely still too small and young for safe fertilizing. Waiting until there is a more established root ball, then planting them in the ground and settling in before you add fertilizers is a hole lot safer than starting to add salts in that smaller soil ball. I would not use organics in the pots of composted horse manure. I fear what you have could be "too rich", too organic as it is. Organic material is a great thing to make good soil from, but too much of it is not a good thing. I would seriously suggest more of a "wait and see" approach. I doubt you can harm them by watching for souring, permitting them to develop more then planting them out before fertilizing. I know you can easily and quickly over fertilize newer bare roots in pots, particularly if there might be an issue with the medium they are planted in. Good luck. Kim...See MoreMosiac virus?
Comments (13)Nick -- if what you saw underneath looked like rust -- yea, they're likely RUST. Let me just say -- I REALLY HATE RUST. I can live with a rose that mildews some -- particularly when it's immature. I can live with a rose that rusts on old foliage, whose time to go has come. I cannot live with a rose that rusts on new leaves. We do not spray. So, when a little rust turns up, particularly on older leaves, I remove those, and put them in the trash can. The plant grows new leaves, and everyone is happy. But when I encounter a rose that just rusts all the time -- that rose, I remove. There are so many roses that don't do that, why live with those that do? (JERI)...See MoreMosiac Virus?
Comments (16)I have roses that show RMV, but IME, for whatever reason, the grafted Austin roses show the MOST obvious symptoms of RMV. I have no idea why this is, and I live in warm climate, but my grafted DA’s show more symptoms than any other Dr. Huey or ownroot roses in my garden. My ‘Mary Rose’ was a blooming machine, but was SO covered in Mosaic mottled leaves it looked like a variegated specimen. This particular Mary Rose also came down with every disease possible. I never get blackspot in my hot and dry climate, yet Mary Rose managed to blackspot. After several years of magnificent blooming and foliage sickened by one thing after another, I finally ripped her out. It’s too bad, because she was about 7 years old and bloomed constantly in the shade. I could have lived with some mottled foliage, but she seemed unable to fight off anything. I had to let her go and I started over with a small ownroot Mary Rose. I know this one is surely virused, too. I just think it can’t possibly be infected with as many different viruses and strains as the first one. Lisa...See MoreHelp needed in identifying rose diseases
Comments (23)I'm a newbie to growing roses, and have a lot yet to learn. I took the advice from the Gardener as good. You provided great alternatives I need to review. Thank you for this information. It's interesting most of the roses with rust and downy mildew problems were shipped in from other states, but a few were from in state. As for Rose issues in Florida, I must be a magnet in attracting them. I had 3 Rose plants die mysteriously in April, less than 2 weeks after buying them as healthy plants with lush, abundant foliage. No bug infection detected, watered properly on occasion, great all day sun position. So issues are no longer a surprise for me when they appear....See MoreKippy
9 years agoseil zone 6b MI
9 years agoPoorbutroserich Susan Nashville
9 years agoolivia23( NC zone 7 )
9 years agojerijen
9 years agoarcus_85
9 years agokentucky_rose zone 6
9 years agogreenster
9 years agoarcus_85
9 years agogreenster
9 years ago
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