Two closely related plant diseases — one in corn and the other in dry bean — have followed similar, but somewhat perplexing patterns of appearing, disappearing, and then resurging as a serious threat to crop yield. A UNL researcher looks at factors affecting the cycle and whether it can be predicted.
The Distinguished Service Award recognizes outstanding effort in teaching, control of a significant plant disease, or service to the science of plant pathology. In nominating Harveson, his peers touted his work across multiple areas.
On July 15 symptoms characteristic of cercospora leaf spot were observed on the lower leaves of sugar beets at the university’s Panhandle Research and Extension Center in Scottsbluff. While it is unusually early for this disease, growers are urged to scout their fields as fungicide applications may be necessary.
Though relatively small, UNL's Department of Plant Pathology has played a significant role in the discovery of many economically important plant diseases, including most recently, a new fungal pathogen causing Fusarium head blight of wheat. This article is from the 2019 Nebraska Crop Management Conference Proceedings.
The occurrence and distribution of plant pathogens are long known to be strongly influenced by the environment. We see evidence of this concept every season on specialty crops in western Nebraska, and 2018 was no exception.
While diseases are one of the three biggest yield-limiting factors of sunflower production, there was little information on how to identify and manage them until university plant pathologists joined in a collaborative effort to conduct research and develop educational resources.
As growers in western Nebraska look at new pulse crops to integrate into their rotations, a UNL plant pathologist works to identify possible disease threats. Cowpea (black-eyed pea) is being studied now.
Unusually early findings of rust in volunteer sunflower in western Nebraska indicate the potential for a major outbreak much earlier than usual. Growers are encouraged to scout within the first few weeks of emergence and treat where necessary.