Why are nematodes so hard to get rid of?

Planting season is right around the corner and so are the pests.

Soybean cyst nematode causes problems for growers every year. A researcher explains why they are so hard to eradicate.

“The worm is about 100th of an inch long, and it’s confusing to people, perhaps also because it goes into the root and attaches to the vascular tissue of the soybean root, but then it swells up. The adult female eventually gets so big that she pops out of the root, and you can see her as a little white dot on the surface of the root. In fact, that’s one way we advise farmers and agronomists to check fields for SCN. Wait till five or six weeks after planting, and then, pretty much, through to August, maybe mid-August, dig roots and look for those little white females,” said Dr. Greg Tylka.

He warns nematode resistance will be a challenge in the future. The current resistance took around 20 years to fall apart.

Related Stories
Specialty Crops Acreage Reporting Deadline for 2025 is March 13
Nitrogen and phosphate markets are tightening ahead of spring, keeping fertilizer costs elevated while crop prices lag.
In the U.S. and Canada, reduced planted acres—not yield losses—led to a decline in potato production, while Mexico saw modest gains due to increased yields and harvested areas.
AFBF Economist Samantha Ayoub discusses the latest data on Chapter 12 farm bankruptcy filings and what the troubling trend signals for the farm economy. At the same time, bigger loans and higher rates are squeezing working capital and increasing financial risk.
Corn demand remains supportive, but weaker soybean buying limits overall export momentum.
The USDA says the framework is about “ending abusive government overreach” and “protecting farmers, families, and private property.”

LATEST STORIES BY THIS AUTHOR:

OOIDA’s Lewie Pugh discusses the EPA’s new Right to Repair guidance and other regulatory developments impacting the trucking and agriculture industries.
Tyler Schuster is an ag industry advocate who mentors and supports the next generation, especially women finding their place in the cattle industry.
NCBA Chief Counsel Mary-Thomas Hart breaks down CAFO permits, EPA enforcement, and what cattle producers need to know as rules continue to evolve.
Rebuilding domestic textiles depends on automation and vertical integration, not tariffs or legacy manufacturing models.
RFD NEWS correspondent Frank McCaffrey spoke with U.S. Congressmen Henry Cuellar (D-TX) and John Rose (R-TN), who say bipartisan cooperation will be key to getting the Farm Bill to the president’s desk.
Merck’s Gary Tiller discusses new virtual fencing technology and how fence-free livestock management could change the way ranchers manage land and cattle.
Agriculture Shows
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.
From soil to harvest. Top Crop is an all-new series about four of the best farmers in the world—Dan Luepkes, of Oregan, Illinois; Cory Atley, of Cedarville, Ohio; Shelby Fite, of Jackson Center, Ohio; Russell Hedrick, of Hickory, North Carolina—reveals what it takes for them to make a profitable crop. It all starts with good soil, patience, and a strong planter setup.
Champions of Rural America is a half-hour dive into the legislative priorities for Rural America. Join us as we interview members of the Congressional Western Caucus to learn about efforts in Washington to preserve agriculture and tackles the most important topics in the ag industry on Champions of Rural America!
Featuring members of Congress, federal and state officials, ag and food leaders, farmers, and roundtable panelists for debates and discussions.