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
OHFB President Bill Patterson shares an update from Washington on the group’s policy priorities and the issues shaping agriculture ahead of the 2026 planting season.
Weather remains the primary driver for wheat price outlook.
Acre reporting is crucial to maximize specialty crop aid.
For producers, success this season will require more than just a clean field; it will require meticulous record-keeping, a proactive written mitigation plan, and a constant eye on both the forecast and the federal docket.
Tidal Grow’s AlignN delivers encapsulated nitrogen to leaves, boosting in-season response, yield gains, and farm profits.
HTS Commodities’ Lewis Williamson provides updates on how growers are preparing for spring planting in an unpredictable agricultural landscape.

LATEST STORIES BY THIS AUTHOR:

Tennessee Ag in focus: Commissioner Holt shares his farm economy outlook, the TNFB honors a cotton legacy, and TN 4-H and FFA leaders discuss support for the next generation of agriculture in Tennessee.
RealAg Radio’s Shaun Haney shares insights from new Real Agri-Studies research surrounding the relationship between farmers and their lenders and what it reveals about the current farm economy.
Farm Bureau economist Dr. Faith Parum explains how geopolitical dynamics in the Middle East could further tighten fertilizer movement, increase fuel costs, and complicate planting decisions for U.S. farmers this spring.
Missouri Farm Bureau President Garrett Hawkins discusses the potential impact of data center growth on farmland, the Landowner Fairness Act, and key priorities for Missouri farmers heading into planting season.
Dr. Jeffrey Gold provides insights on supporting aging populations in rural communities on this week’s Rural Health Matters segment.
Agriculture Shows
Hosted by Scott “The Cow Guy” Shellady and RFD News Markets Specialist Tony St. James, Commodity Talk delivers expert insight into the day’s ag commodity markets just before the CME opens. Only on RFD-TV and Rural Radio SiriusXM Channel 147.
A look at the news, weather and commodities headlines that drove agriculture markets in the past week.
Everything profits from prairie. Soil, air, water — and all kinds of life! Learn how you can improve your land with prairie restoration, cover crops and prairie strips, while growing your bottom line.
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.