The American Agricultural Research Service (ARS) has invented a new DNA testing method that can more easily identify the type of fungus that causes the grain Fusarium ear blight (FHB), which is the first time that the major black spot pathogens have been simultaneously Confirm and predict their toxin profiles. At least 16 species of Fusarium can cause scratchy disease, which can cause crops to reduce production, and use toxins to contaminate the grain, making the food safe to use or as a feed. In 1993, the FHB became the most serious problem in the United States, with 156 million bushels of wheat and 6,900 bushels of barley lost only in the upper reaches of the Central and Western regions. Between 1998 and 2000, this pathogen caused $2.7 billion in damage to U.S. agriculture. Therefore, this DNA test will save the U.S. several hundred million U.S. dollars in the short term, and it also has the potential for long-term application. Todd Ward, a molecular geneticist at the ARS Peoria Center, believes that this technique can be used to understand the distribution of pathogens worldwide and determine whether individual pathogens favor a particular crop or environment. This is of great importance for the development of effective disease control strategies, including the cultivation of cereals with anti-FHB capabilities.
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