Is this botrytis blight?
damask_rose_zone9b
4 years ago
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damask_rose_zone9b
4 years agoRelated Discussions
Botrytis Blight
Comments (2)Botrytis is a fungal disease, not a virus. The spores can be present in any soil but tend to be activated by climate condtions and any sort of damage to the bulbs themselves. It is an extremely difficult pathogen to control and the recommendation is to discard any affected bulbs and plant only fresh, disease-free stock. I would avoid transplanting any other of your bulb offsets to the affected area but I might try with newly purchased bulbs. Here is a link that might be useful: Botrytis in bulbs...See Moretrying to stop! canker from invading bud union...
Comments (1)Cut off the cane as close to the bud union as you can. It looks like that should be enough as there isn't too much black on the bud union itself. You might need to cut off the other cane next to it that is brown and possibly the one thicker one behind it that seems to have some canker although that could just be a shadow. Be ruthless - anything black = canker and you need to get rid of it. I don't think I'd try to cut into the bud union itself. Hopefully it will be healthy enough to fight off the infection. What fungicide do you have? If it is a systemic it might help, but even the Bayer Advanced stuff that I use doesn't do much to canker. Oh, and be sure to clean your pruners between each cut with a disinfectant. I use rubbing alcohol but you can use a bleach solution if you prefer that....See MoreBotrytis Blight in rose
Comments (3)It's hard to judge at this time of year. The roses, including DdB have their 'old' leaves on them which are much more susceptible to disease. I also have DbB and it's the one rose that has held it's leaves all winter. However, most of them have some kind of yuck on them. I would do a spray of a fungicide and also try to remove most of the old leaves. Once the weather gets warmer, you will probably not see them as diseased. However, some roses need to be sprayed regularly to prevent disease. I had roses that have had those annoying red spots on the flowers and when I switched to Honorguard it did a great job of eliminating them....See MoreBlight on marigolds
Comments (0)I started noticing some marigold plants dying off about 2 months ago but I thought it was just because of lack of rain. I was watering now and then. But yesterday after getting home after work I noticed a lot more plants with the same thing on them. Does anyone else have this issues this year? Scroll down past the pepper story Richie botrytis blight...See Moredamask_rose_zone9b
4 years agodamask_rose_zone9b
4 years ago
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