Introduced to the United States over 60 years ago, soybean cyst nematode (SCN) has spread broadly throughout the Midwest and eastern parts of the country. After penetrating the root tissue, SCN take nutrients away from the soybean plant and reduce plant growth and yield. These nematodes are the leading cause of soybean losses in the United States—in 2014, SCN resulted in the loss of 3.5 million tons of soybean.
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Source: Phys.org