Researchers have been updating the map of known soybean cyst nematode distribution regularly since 2000, and with each update, the threat spreads. The latest update, spearheaded by Greg Tylka, a ...

Greg Tylka, a nematologist at Iowa State University, led the survey that has monitored the spread of soybean cyst nematodes, or SCN, since 2014, and found 31 counties in 10 states reported SCN for the ...

The latest update, spearheaded by Iowa State University nematologist Greg Tylka, reveals 31 counties in 10 U.S. states reporting SCN for the first time during the 2020 through 2023 timeframe. In ...

It affects the root system of a plant, and impacts yields significantly,” said Horacio Lopez-Nicora, Ohio State University Extension soybean pathologist and nematologist. “It is a new pathogen to us, ...

Soybean cyst nematodes have been present in every Iowa county since 2017 and new survey results show the costly crop pests ...

Soybean cyst nematodes have been present in every Iowa county since 2017 and new survey results show the costly crop pests continue to spread to more counties across the country and in Canada. Greg ...

Soybean cyst nematodes are quite small and require the help of a microscope to see them poking out of the roots of a soybean plant in a lab at Iowa State University. (Photo by Cami Koons/Iowa ...