The soybean cyst nematode (SCN) is the most damaging pathogen of soybeans in the United States and Canada and it is spreading rapidly, according to information compiled by Gregory Tylka and Christopher Marett, nematologists at Iowa State University. SCN was first found in the United States in 1954 and most recent estimates show that SCN results in $1.5 billion in annual yield losses.
Click here for original story, Soybean cyst nematode is the most damaging soybean pathogen—and it’s rapidly spreading
Source: Phys.org