I am noticing what appears to be a fungus (Septoria?/Stemphylium?) on the lower leaves of tomato plants grown in my greenhouse. Is Danocil safe and effective to use?
Carroll County Maryland
We can't say what you have there and would take a look at digital photos if you'd like to send them.
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As far as the Daconil use in the greenhouse, read and follow your label. If you don't have the label, you can look up the product you have at Kelly Solutions and see what it is labeled for.