By Scout Nelson
The USDA's Agriculture and Food Research Initiative Critical Agriculture Research and Extension (CARE) program has awarded a $300,000 grant to researchers at North Dakota State University (NDSU) and the University of Nebraska–Lincoln (UNL). The research on fungicide resistance in the Diaporthe/Phomopsis species, which causes Phomopsis stem canker in sunflower crops, will be aided by this grant.
The study is led by NDSU’s Febina Mathew, associate professor in the Department of Plant Pathology, and Sam Markell, NDSU Extension pathologist and professor. Their research aims to address a significant challenge for sunflower producers in states like Minnesota, Nebraska, North Dakota, and South Dakota, which collectively account for over 80% of U.S. sunflower production.
Mathew highlights the importance of managing Phomopsis stem canker, noting that it can severely impact sunflower yields. Current management practices involve applying Quinone outside Inhibitor (QoI) fungicides, which can reduce disease severity by up to 30% and boost yields by 5%. However, recent findings have shown that some strains of Diaporthe helianthi have developed complete resistance to these fungicides.
To combat this issue, the research team will evaluate alternative fungicides, such as those containing Succinate Dehydrogenase Inhibitors, and explore the use of Diaporthe-resistant sunflower hybrids. Their goal is to develop integrated pest management strategies that will help farmers protect their crops from disease and prevent economic losses.
In addition to research, the team will create Extension tools to educate farmers and agricultural professionals on effective disease management practices. The collaboration with the National Sunflower Association and other partners underscores the commitment to advancing sunflower production in the U.S. and protecting the economic interests of farmers.
This research initiative represents a critical step in safeguarding sunflower crops from fungicide-resistant diseases and ensuring sustainable agricultural practices in the Midwest.
Photo Credit:usda
Categories: North Dakota, General, Government & Policy