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#1
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Dying Canes and Fungicide
Dave wrote:
The thing that alarms me is a purple "bruising" on the stems of Old Blush, Several of my roses are having a similar problem. The canes develop purplish spots, then the cane turns yellow with spots and then dies. This condition develops not on the small end branches, but on either a main cane or lateral. When the cane starts to go, the tips of the branches above the cane with start dying, looking like dieback. From spots to dead isn't long, a week or two at the most. If it is dieback or canker, fungicides should help. When I first noticed it, I began spraying more regularly, but I have never used Banner Maxx more often than 14 days. I must wonder if the problem is not a lack of fungicide but the result of fungicide, specifically Banner Maxx. I never had this problem until two years ago, a few months after I started using Banner Maxx. The only roses affected are those that are sprayed and all the sprayed roses, except Rose de Rescht, show the same symptoms. I've read other posts, on other boards, where dieback/canker/whatever is becoming more of problem than ever before. And I believe more people are using Banner Maxx, it seems to be the current favorite. I'm not accusing Banner Maxx, I'm not convinced it is the problem, but I do wonder. It could be the roses least resistant to BS are also the least resistant to whatever is causing this problem. I've stopped spraying the two roses most affected, they are down to one cane already. Since I expect to loose them anyway, they are my test roses. If the situation improves on these two roses, I'll start spraying again, but not with Banner Maxx and see what happens. Anyone else having the same/similar problem? Any comments? Julie |
#2
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Dying Canes and Fungicide
Julie, I have not had the pretty extensive damage you are seeing. But I've seen a lot of damage caused from spraying in high heat when the roses is transpiring the most. Its the heat not the sun that causes damage. As I noted earlier My cornell mix does this unfailingly. As far as the least resistance to BS correlation I can't imagine it. In my experience most tip die back begins with the roots. If the roots are not collecting enough nutrients the rose begins cutting back on cane. -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Dave wrote: The thing that alarms me is a purple "bruising" on the stems of Old Blush, Several of my roses are having a similar problem. The canes develop purplish spots, then the cane turns yellow with spots and then dies. This condition develops not on the small end branches, but on either a main cane or lateral. When the cane starts to go, the tips of the branches above the cane with start dying, looking like dieback. From spots to dead isn't long, a week or two at the most. If it is dieback or canker, fungicides should help. When I first noticed it, I began spraying more regularly, but I have never used Banner Maxx more often than 14 days. I must wonder if the problem is not a lack of fungicide but the result of fungicide, specifically Banner Maxx. I never had this problem until two years ago, a few months after I started using Banner Maxx. The only roses affected are those that are sprayed and all the sprayed roses, except Rose de Rescht, show the same symptoms. I've read other posts, on other boards, where dieback/canker/whatever is becoming more of problem than ever before. And I believe more people are using Banner Maxx, it seems to be the current favorite. I'm not accusing Banner Maxx, I'm not convinced it is the problem, but I do wonder. It could be the roses least resistant to BS are also the least resistant to whatever is causing this problem. I've stopped spraying the two roses most affected, they are down to one cane already. Since I expect to loose them anyway, they are my test roses. If the situation improves on these two roses, I'll start spraying again, but not with Banner Maxx and see what happens. Anyone else having the same/similar problem? Any comments? Julie |
#3
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Dying Canes and Fungicide
Sorry hit send too soon.
I know of atleast 2 varieties of canker on my roses. The tip variety is relatively harmless. Just cut back to clean cane. The other one I've seen occassionally causes black/purple spots with a whitish raised ridge around it. This causes loses of entire canes for me. I've only seen it a couple of times. I'm not sure what variety it is. I didn't mess around with fungicides but rather cut the entire cane away. Ouch! -- Theo in Zone 5 Kansas City "Theo Asir" wrote in message news:e9499bf02edc4b826b787b4a3e6a1a1e@TeraNews... Julie, I have not had the pretty extensive damage you are seeing. But I've seen a lot of damage caused from spraying in high heat when the roses is transpiring the most. Its the heat not the sun that causes damage. As I noted earlier My cornell mix does this unfailingly. As far as the least resistance to BS correlation I can't imagine it. In my experience most tip die back begins with the roots. If the roots are not collecting enough nutrients the rose begins cutting back on cane. -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Dave wrote: The thing that alarms me is a purple "bruising" on the stems of Old Blush, Several of my roses are having a similar problem. The canes develop purplish spots, then the cane turns yellow with spots and then dies. This condition develops not on the small end branches, but on either a main cane or lateral. When the cane starts to go, the tips of the branches above the cane with start dying, looking like dieback. From spots to dead isn't long, a week or two at the most. If it is dieback or canker, fungicides should help. When I first noticed it, I began spraying more regularly, but I have never used Banner Maxx more often than 14 days. I must wonder if the problem is not a lack of fungicide but the result of fungicide, specifically Banner Maxx. I never had this problem until two years ago, a few months after I started using Banner Maxx. The only roses affected are those that are sprayed and all the sprayed roses, except Rose de Rescht, show the same symptoms. I've read other posts, on other boards, where dieback/canker/whatever is becoming more of problem than ever before. And I believe more people are using Banner Maxx, it seems to be the current favorite. I'm not accusing Banner Maxx, I'm not convinced it is the problem, but I do wonder. It could be the roses least resistant to BS are also the least resistant to whatever is causing this problem. I've stopped spraying the two roses most affected, they are down to one cane already. Since I expect to loose them anyway, they are my test roses. If the situation improves on these two roses, I'll start spraying again, but not with Banner Maxx and see what happens. Anyone else having the same/similar problem? Any comments? Julie |
#4
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Dying Canes and Fungicide
In article , Unique Too
wrote: Dave wrote: The thing that alarms me is a purple "bruising" on the stems of Old Blush, Several of my roses are having a similar problem. The canes develop purplish spots, then the cane turns yellow with spots and then dies. This condition develops not on the small end branches, but on either a main cane or lateral. When the cane starts to go, the tips of the branches above the cane with start dying, looking like dieback. From spots to dead isn't long, a week or two at the most. If it is dieback or canker, fungicides should help. When I first noticed it, I began spraying more regularly, but I have never used Banner Maxx more often than 14 days. I must wonder if the problem is not a lack of fungicide but the result of fungicide, specifically Banner Maxx. I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... I never had this problem until two years ago, a few months after I started using Banner Maxx. The only roses affected are those that are sprayed and all the sprayed roses, except Rose de Rescht, show the same symptoms. I've read other posts, on other boards, where dieback/canker/whatever is becoming more of problem than ever before. And I believe more people are using Banner Maxx, it seems to be the current favorite. I'm not accusing Banner Maxx, I'm not convinced it is the problem, but I do wonder. It could be the roses least resistant to BS are also the least resistant to whatever is causing this problem. I've stopped spraying the two roses most affected, they are down to one cane already. Since I expect to loose them anyway, they are my test roses. If the situation improves on these two roses, I'll start spraying again, but not with Banner Maxx and see what happens. Anyone else having the same/similar problem? Any comments? Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. |
#5
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Dying Canes and Fungicide
"Theo Asir" writes:
I know of atleast 2 varieties of canker on my roses. The tip variety is relatively harmless. Just cut back to clean cane. I see some of that, but not a lot. Unless there's one of the purple spotted canes below it. The other one I've seen occassionally causes black/purple spots with a whitish raised ridge around it. This causes loses of entire canes for me. I've only seen it a couple of times. I'm not sure what variety it is. I didn't mess around with fungicides but rather cut the entire cane away. Ouch! No white ridges here, from purple spots on green canes to purple spots on yellow canes to dead. I've been cutting them off as fast as I see them. But it doesn't do much good when it just starts on another cane. Oh yea, I sanitize the pruners between cuts. It is painful, more than one rose is down to a single healthy cane. At least the worst offenders are the HTs and they aren't my favs. When/if it starts on some of my old roses I'll really by POed. Julie |
#6
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Dying Canes and Fungicide
Cass writes:
I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
#7
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Dying Canes and Fungicide
Cass your pictures triggered of a memory in my head. I saw the same damage on some grape vines my sister grows. She told me was a Mildew. Apparently mildew can affect canes too. So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. I couldn't even find a good picture but try this one. http://www.cruzio.com/~rbedard/devor...wnymildew.html -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Cass writes: I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
#8
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Dying Canes and Fungicide
Yep, I'm afraid you may be on to something there, Theo. I've never seen
the rapid defoliation and death described. Since the rose *was* so large, it could just take a while to kill it. It's been working on it for a couple or three years, at least. I'm going to try a downy mildew fungicide and conduct major surgery; otherwise, that thing is history. Sad, Lavender Lassie was a beautiful thing. Got 15 of 20 waiting to take its place. In article 21dd0ebcc53f41fb071e16c75d2dd9e9@TeraNews, Theo Asir wrote: Cass your pictures triggered of a memory in my head. I saw the same damage on some grape vines my sister grows. She told me was a Mildew. Apparently mildew can affect canes too. So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. I couldn't even find a good picture but try this one. http://www.cruzio.com/~rbedard/devor...wnymildew.html -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Cass writes: I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
#9
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Dying Canes and Fungicide
Noooooo!!! Say it Ain't so. Your LL shrub pictures were what made me get mine too. Is Sally Holmes showing similar damage. Mine is a real tart. gets every disease in town. -- Theo in Zone 5 Kansas City "Cass" wrote in message .. . Yep, I'm afraid you may be on to something there, Theo. I've never seen the rapid defoliation and death described. Since the rose *was* so large, it could just take a while to kill it. It's been working on it for a couple or three years, at least. I'm going to try a downy mildew fungicide and conduct major surgery; otherwise, that thing is history. Sad, Lavender Lassie was a beautiful thing. Got 15 of 20 waiting to take its place. In article 21dd0ebcc53f41fb071e16c75d2dd9e9@TeraNews, Theo Asir wrote: Cass your pictures triggered of a memory in my head. I saw the same damage on some grape vines my sister grows. She told me was a Mildew. Apparently mildew can affect canes too. So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. I couldn't even find a good picture but try this one. http://www.cruzio.com/~rbedard/devor...wnymildew.html -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Cass writes: I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
#10
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Dying Canes and Fungicide
On Mon, 30 Jun 2003 15:10:39 GMT, "Theo Asir"
wrote: Cass your pictures triggered of a memory in my head. I saw the same damage on some grape vines my sister grows. She told me was a Mildew. Apparently mildew can affect canes too. So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. Theo, this is right on. There is a garbage shrub out by one of my beds, it is really a weed that grows into a tough woody shrub really fast. Among the many reasons for which I hate it (I have hacked it to the ground three times), it gets covered with thicky, gaggy looking white mildew all over its thick, shiny, hollyish leaves. Well--I just checked and both Tropical Sunset and Pensioner's Voice have that purple, bruised looking cane and are cankering all to hell. It has been a great day, my friend. The voles killed my lovely Sunsprite AND Lover's Lane, and it looks like White Lightnin' might be half gone. I dug up the ownroot Scentimental beside WL and plunked it in a pot to see if I can save it from the same. I think it is safe to say that using thick mulch around here, especially oak leaves, is a mistake. There was Permatil in every one of those holes, all the way around the bottom and the sides! I think the little f*kkers went in from above, instead of below! Wahhhhh! Two weeks ago they got Reine des Violettes, Granada, and their second Europeana! I couldn't even find a good picture but try this one. http://www.cruzio.com/~rbedard/devor...wnymildew.html -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Cass writes: I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
#11
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Dying Canes and Fungicide
I don't know about voles vis-a-vis roses, but for veggies, voles kill from
the ground up, as they like the wilted stems. or so I was told -- I'm feeling a little wilted myself tonight! (35th anniversary was tres romantic! -- and I finished Harry5 on the ride ome -- and Graham Thomas put out for me, yowza!) Anne Lurie Raleigh, NC Shiva" wrote in message s.com... On Mon, 30 Jun 2003 15:10:39 GMT, "Theo Asir" wrote: Cass your pictures triggered of a memory in my head. I saw the same damage on some grape vines my sister grows. She told me was a Mildew. Apparently mildew can affect canes too. So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. Theo, this is right on. There is a garbage shrub out by one of my beds, it is really a weed that grows into a tough woody shrub really fast. Among the many reasons for which I hate it (I have hacked it to the ground three times), it gets covered with thicky, gaggy looking white mildew all over its thick, shiny, hollyish leaves. Well--I just checked and both Tropical Sunset and Pensioner's Voice have that purple, bruised looking cane and are cankering all to hell. It has been a great day, my friend. The voles killed my lovely Sunsprite AND Lover's Lane, and it looks like White Lightnin' might be half gone. I dug up the ownroot Scentimental beside WL and plunked it in a pot to see if I can save it from the same. I think it is safe to say that using thick mulch around here, especially oak leaves, is a mistake. There was Permatil in every one of those holes, all the way around the bottom and the sides! I think the little f*kkers went in from above, instead of below! Wahhhhh! Two weeks ago they got Reine des Violettes, Granada, and their second Europeana! I couldn't even find a good picture but try this one. http://www.cruzio.com/~rbedard/devor...wnymildew.html -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Cass writes: I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
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Dying Canes and Fungicide
It's gross. I don't know fer sure what it is. If I were motivated, I'd
try to get a test, but I've go so many waiting in line that I'd rather dig the bitch up. Cheer up. I'll bet downy mildew has a tough time overwintering in St. Louie. And no, Sally suffers nothing of importance here, tho the spent blooms will show botrytis eventually. In article f55eb5adcf2202d5bde0d04f836b8ecd@TeraNews, Theo Asir wrote: Noooooo!!! Say it Ain't so. Your LL shrub pictures were what made me get mine too. Is Sally Holmes showing similar damage. Mine is a real tart. gets every disease in town. -- Theo in Zone 5 Kansas City "Cass" wrote in message .. . Yep, I'm afraid you may be on to something there, Theo. I've never seen the rapid defoliation and death described. Since the rose *was* so large, it could just take a while to kill it. It's been working on it for a couple or three years, at least. I'm going to try a downy mildew fungicide and conduct major surgery; otherwise, that thing is history. Sad, Lavender Lassie was a beautiful thing. Got 15 of 20 waiting to take its place. In article 21dd0ebcc53f41fb071e16c75d2dd9e9@TeraNews, Theo Asir wrote: Cass your pictures triggered of a memory in my head. I saw the same damage on some grape vines my sister grows. She told me was a Mildew. Apparently mildew can affect canes too. So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. I couldn't even find a good picture but try this one. http://www.cruzio.com/~rbedard/devor...wnymildew.html -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Cass writes: I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
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Dying Canes and Fungicide
In article m, Shiva
wrote: On Mon, 30 Jun 2003 15:10:39 GMT, "Theo Asir" wrote: Cass your pictures triggered of a memory in my head... So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. Theo, this is right on. There is a garbage shrub out by one of my beds, it is really a weed that grows into a tough woody shrub really fast. Among the many reasons for which I hate it (I have hacked it to the ground three times), it gets covered with thicky, gaggy looking white mildew all over its thick, shiny, hollyish leaves. Well--I just checked and both Tropical Sunset and Pensioner's Voice have that purple, bruised looking cane and are cankering all to hell. It has been a great day, my friend. The voles killed my lovely Sunsprite AND Lover's Lane, and it looks like White Lightnin' might be half gone. I dug up the ownroot Scentimental beside WL and plunked it in a pot to see if I can save it from the same. I think it is safe to say that using thick mulch around here, especially oak leaves, is a mistake. There was Permatil in every one of those holes, all the way around the bottom and the sides! I think the little f*kkers went in from above, instead of below! Wahhhhh! Two weeks ago they got Reine des Violettes, Granada, and their second Europeana! I know that I have personally po'd the rose god. Right after I received the word about DM from not one but *two* careful researchers, I determined that I have improved the soil enough to attract... pocket gophers. They have a rough time making a living here, but they've found my raised beds. I hope they're big enough to be discouraged by wire planting cages. So far, the bunkers excavated with my jackhammer are secure. Sheesh. What next? Blue ice? |
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Dying Canes and Fungicide
On Tue, 01 Jul 2003 01:42:54 GMT, "Anne Lurie"
wrote: I don't know about voles vis-a-vis roses, but for veggies, voles kill from the ground up, as they like the wilted stems. There are two kinds, pine voles that are small and burrow underground and meadow voles that look like guinea pigs and girdle trees and such from above ground. Lucky me, I have seen both in my yard! Where the h*ll is all that toxic waste damage my Orthenex is supposed to cause when I really need it? or so I was told -- I'm feeling a little wilted myself tonight! (35th anniversary was tres romantic! -- and I finished Harry5 on the ride ome -- Just because of the number, and not the company, I hope. If it is age that bothers you, please consider the alternative and feel happy! I once heard a neat lady say "I'm not getting wrinkled, I'm just getting more detailed." and Graham Thomas put out for me, yowza!) Beautiful rose. And, I have to say, of ALL my roses my Austins have held up best in this deluge. They are all on their own roots, and have kept their leaves and show little dieback and no canker. I am beginning to wonder if those inevitable stumps on grafted roses invite disease. Anne Lurie Raleigh, NC Shiva" wrote in message ws.com... On Mon, 30 Jun 2003 15:10:39 GMT, "Theo Asir" wrote: Cass your pictures triggered of a memory in my head. I saw the same damage on some grape vines my sister grows. She told me was a Mildew. Apparently mildew can affect canes too. So I went looking and this is apparently not very well known but Downy Mildew apparently causes these blotches on rose canes. Theo, this is right on. There is a garbage shrub out by one of my beds, it is really a weed that grows into a tough woody shrub really fast. Among the many reasons for which I hate it (I have hacked it to the ground three times), it gets covered with thicky, gaggy looking white mildew all over its thick, shiny, hollyish leaves. Well--I just checked and both Tropical Sunset and Pensioner's Voice have that purple, bruised looking cane and are cankering all to hell. It has been a great day, my friend. The voles killed my lovely Sunsprite AND Lover's Lane, and it looks like White Lightnin' might be half gone. I dug up the ownroot Scentimental beside WL and plunked it in a pot to see if I can save it from the same. I think it is safe to say that using thick mulch around here, especially oak leaves, is a mistake. There was Permatil in every one of those holes, all the way around the bottom and the sides! I think the little f*kkers went in from above, instead of below! Wahhhhh! Two weeks ago they got Reine des Violettes, Granada, and their second Europeana! I couldn't even find a good picture but try this one. http://www.cruzio.com/~rbedard/devor...wnymildew.html -- Theo in Zone 5 Kansas City "Unique Too" wrote in message ... Cass writes: I don't think it is Banner Maxx. I almost never spray fungicide and have never used Banner Maxx. I first saw this stuff last year on Lavender Lassie. Dormant spraying has had no effect, nor have I seen any decrease since spraying for Fore and with Decree. I suspect that I'm going to lose the whole plant, which will be a shame. I just sense that it's headed for collapse. I thought is might be an effect of spraying myself because it seems to appear down one side of the cane in some cases. But then I saw spots on roses that have never been sprayed at all. I also thought it might be sun burn, but then I found where the sun don't shine. However, there are many different kinds of spots....here's what I find on my rose, which could be a different gunk: http://home.earthlink.net/~cbernstei...assieWorst.jpg http://home.earthlink.net/~cbernstei...assieSpots.jpg Kind of hard to tell by the photos. I don't see the distinct purple spots and yellow cane that I see on mine. But it may be my monitor not showing the true colors. I'm pretty certain it isn't sunburn, most of the affected canes are too low to the ground to get direct sun. I've used a variety of fungicides, but the only new one is the Banner Maxx. In looking for a cause that was the one thing I could see that I had done differently. A nutrient dificiency is another thought. But it's happening in different areas in different soil types. Both the good soil and sandy spots have the same problems. I haven't changed my fertilizing habits, it's varied, lots of different kinds, mostly organic, but also some cheap bagged stuff. I bought some Zyban (Cleary's 3336 combined with Fore) because of Cleary's supposed systemic effect. That's the only thing I can think to do. I guess I could also try Phyton 27 for the same reason.... That's two I haven't tried. I did use a copper one this year for the first time. An "expert" told me that would help if it were a canker. I couldn't see any difference, I still continued to loose canes. Can you post pictures? I can come up with all kinds of conspiracy theories if I work myself up, but I think that even in my own garden, I have more than one think at work. For example, I think a canker is at work also, and since it causes cane symptoms, it's easy to confuse the two. I guess I'm going to have to get a lab test. I need to take some photos, but I haven't yet. If the weather cooperates this weekend, I'll put that on my to do list. Lots of strange things happening with the roses lately. Is someone trying to tell me they should go away? Or make me give up? Ain't gonna happen. Where do you get a lab test? At this rate it would be worth it to save the roses or at least know what is going on. I'm not good with things I don't understand or can't figure out. Julie |
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Dying Canes and Fungicide
On Mon, 30 Jun 2003 23:29:05 -0700, Cass
wrote: I know that I have personally po'd the rose god. Right after I received the word about DM from not one but *two* careful researchers, I determined that I have improved the soil enough to attract... pocket gophers. Oh no, they are bigger than voles and so much worse, I imagine, as they can eat more! Although, the voles just eat the roots, not much volume wise but rather important to the plant. They have a rough time making a living here, but they've found my raised beds. I hope they're big enough to be discouraged by wire planting cages. So far, the bunkers excavated with my jackhammer are secure. Sheesh. What next? Blue ice? Heh. I don't know. Cats are good, but if you live in a busy place and you love cats you don't want them outseide. It is a good thing I am past my thuper thenthitive rose growing period, or I would be beside myself. As it is I am having some difficulty looking on the bright side. I mean, I can plan a new bed, but why do it if they will get those plants too? I guess I have to use permatil on all sides and on top of the roots, too. Worst of all, I may have to scrape up all my lovely decaying leaves. They are breeding mosquitos, too. |
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