Many people on here use daconil and say it helps as a prevention. I have not used it because it allegedily can cause cancer in humans, but no proven cases as far as i know. I lose my tomatoes every year to different kinds of blight. Trying a hoop house this coming year and planting some determinates to see if i can get a crop before the june diseases start up. Also plan to use actinovate and excel lg. Hav not tried them yet. Folks on here have said good things about them.
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