Climate change is occurring in the central US and is interacting with agroecological factors to increase biotic stress in sunflower. Certain species of Diaporthe cause Phomopsis stem canker in sunflower and other dicotyledonous weeds and crops. The increase in precipitation already observed in the states of North Dakota, South Dakota, and Minnesota have increased the chances of outbreaks of necrotrophic pathogens, like Diaporthe. We discuss how climate trends, combined with technological, management, and economic interactions, are correlated with increasing incidence of Phomopsis stem canker in these and adjacent areas in North America. Further, we discuss management options and the role of improved sunflower genetics in reducing Phomopsis stem canker outbreak risk.
DOI of Published Version
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S.
Hulke, Brent S.; Markell, Samuel G.; Kane, Nolan C.; and Mathew, Febina M., "Phomopsis Stem Canker of Sunflower in North America: Correlation with Climate and Solutions Through Breeding and Management" (2019). Agronomy, Horticulture and Plant Science Faculty Publications. 296.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.