New to this subject and trying to learn and be better prepared this year. My whole area saw much disease and my work commute drove me past a few farms with devastated tomato plants.
From my readings, it would seem that systemic fungicides could be more effective that the alternative, because they get better absorbed by the plant. However, some/most of the mentioned names (daconil, mancozeb, copper) are not systemic. Any experience or informed opinions on this characteristic, plus or con?
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