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| I have some thornless blackberries with spots and yellowing of the lower leaves, it's like they started at the lowest lateral and work up the plant and the cane as a moldy look? I don't know if this is a disease or just normal, some of the trees around are dropping some leave (Atlanta, GA). I never trimmed the lower 2' of lathers on my erect blackberries, I planned on tying them up to the trellis, should I trim these off to prevent disease? |
Follow-Up Postings:
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- Posted by gator_rider2 z8 Ga. (My Page) on Thu, Sep 11, 14 at 18:17
| Do water plant wet those lower leaves. And what name plant? I never trim leaves. What age plant stem in photo if flora-cane that problem. |
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- Posted by catfishhoward none (My Page) on Thu, Sep 11, 14 at 18:48
| We get a lot of evening rain, the spots are on my Triple Crown and Apaches. The stem is this years growth. |
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| It's also on your canes..notice the dark spots. Probably something fungal...maybe cercospora leaf spot. I usually just search google for something like "blackberry plant brown spots" and then look through the "Images" section. You will usually find a picture that will help you identify the type of plant disease. I don't know if it is worth worrying about now..the leaves are going to fall soon and the plant will go dormant. You may want to remove the infected leaves after they fall. That will help keep the fungus from spreading next year. You may also want to do a lime-sulfur spray before the plant leafs out next spring. There are additional sprays you can use after lime-sulfur but I have found that Triple Crown and most of the eastern blackberry varieties usually push through minor leaf fungus infections fine without the additional sprays. |
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