St. Paul, Minnesota, USA
October 29, 2015
The Diaporthe/Phomopsis disease complex in soybeans has been known to cause seed decay, stem blight, and stem canker—ailments which can significantly reduce yield potential.
The Plant Management Network (PMN) has released a new presentation entitled “Soybean Stem Canker: Re-emerging?” to help professionals better understand how to properly identify this still-present disease’s relevant symptoms, the role of various causal agents, and which techniques may help reduce the occurrence of infections.
Developed by Dr. Febina Mathew, Oilseeds Plant Pathologist and Assistant Professor at South Dakota State University, this presentation chronicles the higher than expected presence of Diaporthe longicolla in stem canker-infected soybean plants in South Dakota. Diaporthe longicolla, the causal agent of Phomopsis seed decay, was also shown to be prevalent in plants with stem disease and may be a possible causal agent.
In addition to these findings, Mathew describes:
- Symptoms of infection caused by the Diaporthe virus family in soybean plants
- Differences in aggressiveness between Diaporthe longicolla and Diaporthe caulivora species
- Management techniques which may help prevent infections and reduce crop loss
By the end of this webcast, viewers will be able to scout and identify soybean stem canker from other similar maladies and have a basic understanding of useful management strategies to help prevent infections.
The executive summary and full 14-minute presentation will remain open access through November 30 in the Focus on Soybean webcast resource.
The Plant Management Network is a nonprofit publisher of applied, science-based resources that help enhance the health, management, and production of agricultural and horticultural crops. Partnering with over 80 universities, nonprofits, and agribusinesses, PMN provides materials covering a wide range of crops and contemporary issues through the online PMN Education Center.
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