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
Lyndsey Smith with RealAg Radio discusses how global trade dynamics could shape the future of Canada’s pulse exports.
Brooks York with Agri-Sompo joined us to discuss this year’s harvest price calculations and what they could mean for producers nationwide.
Corn and wheat inspections outpaced last year, but soybean movement remains seasonally active yet behind, keeping basis and freight dynamics in focus by corridor.
After years of battling misinformation online, Potatoes USA is using artificial intelligence to monitor and respond to false claims about the industry.
API said it stands ready to work with Congress to develop a balanced approach to E15 legislation that promotes fuel choice, supports investment certainty, and contributes to a stable and fair marketplace for American consumers.
In the meantime, Senate Majority Leader John Thune is asking that farmers be allowed to use marketing assistance loans to help stay afloat.

LATEST STORIES BY THIS AUTHOR:

USTR Jamieson Greer signals a narrower trade deal with China, adding more market uncertainty. The Farm Bureau also supports reviewing China’s missed trade commitments under the Phase One.
Southern producers head into 2026 with thin margins, tighter credit, and rising agronomic risks despite scattered yield improvements.
Record yields and exceptionally low BCFM strengthen U.S. corn’s competitive position in global markets.
Raulston Acres Christmas Tree Farm in Rock Springs, Ga., has been in the same family for three generations.
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.