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Entry Date
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Location
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Tuesday, June 18, 2024
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Saswampo
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San Diego, CA
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Entry 35 of 46 |
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These yellow spots showed up yesterday on the upper leaves of the wide head sunflower. Plant looks great otherwise. Anyone know what it might be from?
Recall, I've been hitting it hard with with soluble, high phosphorous ferts. Not sure if the heavy P is the culprit or something else. I used the same ferts last year & don't recall seeing this. Day & night temps have been pleasant, so it's not heat/cold related.
Note, I did foliar spray with K-bicarbonate, neem oil & hemp soap over the weekend to keep the insects & powdery mildew away. It was regular strength. The tomato plants & Reapers got it too and are doing great.
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