Quote:
Originally Posted by korney19
It depends on the disease. By the time you see the symptoms of Late Blight, it's usually too late.
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I'm sure you're right. One advantage of being in the woods, I haven't had late blight blow in. We also don't get Septoria here afaik. It doesn't flourish in the North.
Also when we do have hot humid weather, I've had problems with leaf mold (Fulvia fulva) and both types of mildew L taurica and I forget the name of the other one, which blow in the greenhouse window from hosts outdoors. Then the 'sanitation pruning' becomes 'sanitation defoliation'. Especially leaf mold, is simply rampant as long as the heat holds. I can only hope that the plants will survive until the weather changes.
This year I did some sheet mulching to suppress the host vegetation near the greenhouse windows, and was really pleased that this worked as a prevention for leaf mold and for the mildews as well.
I don't know if any of the sprays also prevent leaf mold.
