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#1
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Disease identification
Do anyone knows what kind of disease this is?
The younger leafs fall down on touching and they have this strange design.... http://www.geocities.com/artyard/pia.../malattia1.jpg |
#2
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Disease identification
cristina wrote:
Do anyone knows what kind of disease this is? The younger leafs fall down on touching and they have this strange design.... http://www.geocities.com/artyard/pia.../malattia1.jpg I have added two closeups: http://www.geocities.com/artyard/pia...alatclose1.jpg http://www.geocities.com/artyard/pia...alatclose2.jpg |
#3
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Disease identification
If you don't get any help, send your picture to Nina Shishkoff, who is a plant
pathologist, Iris, Central NY, Zone 5a, Sunset Zone 40 "If we see light at the end of the tunnel, It's the light of the oncoming train." Robert Lowell (1917-1977) |
#4
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Disease identification
Looking again, my guess is rose mosaic, a virus disease. Dig the plant up,
destroy it, and don't plant another rosebush in the same place. Iris, Central NY, Zone 5a, Sunset Zone 40 "If we see light at the end of the tunnel, It's the light of the oncoming train." Robert Lowell (1917-1977) |
#5
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Disease identification
Before destroying the plant, and if you can't afford to virus test, I'd try
treating with an all purpose micronutrient. Roses respond in some rather weird ways (and some predictable ones too) to lack of certain micronutrients such as zinc, molybdomen, copper (or its overdose), and others. Buy a fertilizer with a complete micronutrient additive and spray on the leaves as well as drenching the roots. If 2 or 3 of these treatments doesn't cure the problem, than it's probably fungal or viral. Treatments of Dithane and/or Physan might help. If not, follow Iris's advice. Gary "cristina" wrote in message ... Do anyone knows what kind of disease this is? The younger leafs fall down on touching and they have this strange design.... http://www.geocities.com/artyard/pia.../malattia1.jpg |
#6
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Disease identification
Rather than guessing send it to an independent lab. It will need a 1/2 cup sample air dried. Cost is about $15. If a nutrient problem, they will ID it. Send a note asking for help. I used to do this for a living. Chuck "V_coerulea" wrote in message ... Before destroying the plant, and if you can't afford to virus test, I'd try treating with an all purpose micronutrient. Roses respond in some rather weird ways (and some predictable ones too) to lack of certain micronutrients such as zinc, molybdomen, copper (or its overdose), and others. Buy a fertilizer with a complete micronutrient additive and spray on the leaves as well as drenching the roots. If 2 or 3 of these treatments doesn't cure the problem, than it's probably fungal or viral. Treatments of Dithane and/or Physan might help. If not, follow Iris's advice. Gary "cristina" wrote in message ... Do anyone knows what kind of disease this is? The younger leafs fall down on touching and they have this strange design.... http://www.geocities.com/artyard/pia.../malattia1.jpg |
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