Alvine's Edible Backyard
Fruit Tree Forum ContributionsAlvine Forum ContributionsGrapes brown blotches - Hi Amanda, Definitely not sunburn. Boron? I guess it could be though the fertilizer I had been using did contain trace elements. Perhaps not enough in view of the sandy soil. Looking hard, I did find leaves with the border starting to die and some with y..4547 days 7hrs Grapes brown blotches - Update for those interested: It was suggested it might be Potassium deficiency so I applied a Potash foliar spray about one week ago. And the problem has shown no progression since then so I think I've got it solved. Thanks again to all who contributed. ..4549 days 12hrs Grapes brown blotches - I've given it another dose of fertilizer and I'll keep an eye on it. Thanks again to all who offered advice. If anybody else believe they have a definite, feel free!..4556 days 13hrs Grapes brown blotches - Thanks Jackfruit & Diana. No relationship with sun exposure and not consistent with Phos acid spraying. Last year, when it seemed the vine might actually be ready to produce for the first time after about 12 years of total neglect, I fertilized it after a..4557 days 1hrs Grapes brown blotches - Thanks for your thoughts yrt. I'm not sure it's Botrytis though. All the info I find about Botrytis eventually shows a "mildewy" growth on the fruit and true "bunch rot" formation, whereas this starts on the outside of the affected fruits and seems..4557 days 6hrs |
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