Anthracnose top dieback became very noticeable in Iowa several years ago, but last year this disease was not seen in many fields. This year is shaping up differently, and there are many fields with tops dying back and showing symptoms of anthracnose. This problem cannot be diagnosed, however, from a distance. There may be other causes for tops of plants to dieback, particularly European corn borer.
Iowa State University
Munkvold, Gary P., "Anthracnose top dieback is back" (2002). Integrated Crop Management News. 1699.
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