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
Tight storage could widen basis and limit marketing flexibility.
Large carry-in stocks across major crops could limit price recovery in 2026/27 unless demand strengthens or weather-related supply reductions occur.
Cotton acres slipping as competing crops gain ground.
Rising Chinese feed output — especially for swine — signals sustained demand for protein meals and feed inputs, even when meat production growth appears modest.
Ethanol output is improving, but weak domestic demand and export headwinds temper optimism about corn demand. Renewable Fuels Association President & CEO Geoff Cooper discusses the latest developments on Federal approval of year-round E15.
The USDA’s Farm Service Agency (FSA) has issued final Emergency Livestock Relief Program (ELRP) payments totaling more than $1.89 billion.

LATEST STORIES BY THIS AUTHOR:

Nationwide highlights expanded insurance options for cattle operations and their company initiatives to promote grain bin safety and support women in agriculture.
New Holland VP Ryan Schaefer shares insights into the brand’s legacy and innovations that support U.S. cattle producers.
Corey Owens of the San Angelo Stock Show and Rodeo Association shares updates about this year’s event and its continued impact on youth, agriculture, and the San Angelo community.
Success requires more than talent — on this week’s FFA Today, agriculture students show us the hard work, dedication, and teamwork required to gain important skills outside of the classroom through the National FFA Organization.
Federal assistance has helped, but the most recent row-crop losses remain on producers’ balance sheets.
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.