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“…Organic fungicides for the prevention and control of fungal disease include neem oil, Serenade® and Oxidate®. Compost tea is often recommended by organic aficionados, but research doesn’t support its effectiveness. Fungicides containing copper may have some effect but copper products may have a higher risk rating than conventional fungicides. …” This is the first report of risks regarding copper that I’ve seen, but it’s worth investigating, as well as investigating the “organic” controls such as neem oil (seems the safest at first glance), Serenade and Oxidate – wondering what they have in them
via What to do about your dying tomato plants.
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