This season has been unusual for corn diseases.  Early in the year, starting in south Texas and progressing north, the fungal disease, northern corn leaf blight (Figure 1), has been very prevalent.  Usually, a few lesions of the disease are seen on the lowest leaves and the disease never progresses.  Disease development is driven by frequent rain and temperatures lower than 80°F.  In a typical Texas growing season, infrequent rain, but moreover increasing temperatures will hinder the fungus.  Weather conditions early in the season supported disease development.  There… Read More →