Bacterial leaf streak disease of corn, caused by Xanthomonas vasicola pv. vasculorum, has now been confirmed in multiple Corn Belt states. First identified in Nebraska, the bacterial disease has symptoms similar to other corn diseases, such as gray leaf spot, but is managed differently.
By far, the greatest risk of losses from mite-vectored viruses occurs when there is a summer "green bridge" of volunteer wheat emerging before harvest. This almost always occurs as a result of wheat seed head shatter from hail storms (Figure 1).
In an ongoing survey for soilborne pathogens in soybeans, closer examination of soybean seedling injury in a Keith County field found several causes, including herbicide injury and damping off from Fusarium or Rhizoctonia root rot.
Based on the increase in dry pea acreage throughout western Nebraska, UNL conducted a comprehensive disease survey in 2015 to identify the most prevalent and important disease issues in Nebraska production. The primary problem consistently observed across the region was a bacterial blight complex caused by two distinct, but closely related pathogens: Pseudomonas syringae pv. pisi (Psp) and Pseudomonas syringae pv. syringae (Pss).