Fungus? May be... not sure. It is a bit early for "late blight" (P infestans). However, browning of stem sections is a symptom of it. With Daconil, it is NOT a curative for fungal infections... at least not some of them. It is a deterrent that must be applied prior to significant infections. After the late blight has got a foothold, it is too late for Daconil to be of much effectiveness. 'Round parts here, it WILL manifest itself if weather conditions are suitable (cool, damp). I tell folks on this very simply: "Do not wait. And keep applying every 7 days or so." Nevertheless, my words fall on apparently some deaf ears. Reggie
reginald_317
edweather USDA 9a, HZ 9, Sunset 28
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