South Carolina Crops

Nematode Sampling – Pull them now for 2026!

Now is a great time to pull nematode samples if you have not already done so. Whether you pull samples regularly or have never pulled a sample, the SC Corn, Soybean, and Cotton Boards, in collaboration with Clemson University, are providing the analysis of nematode samples for free again in 2026. Knowing which nematode species you have and the levels at which they occur in the field can drastically change your management strategy. Remember, once you have planted and closed the furrow, your options for controlling nematodes basically end. Common nematode management tactics include crop rotation to a non-host crop, use of resistant varieties, or the use of at-plant nematicides.

To pull a nematode sample, pull soil cores similar to a fertility sample from 6-8 inches deep. If possible, try to sample near the previous crop’s row or root residue. Put the samples in a plastic (Ziploc) bag to prevent them from drying out, and keep them in the shade. Get them to your local Extension agent as soon as possible; they will then send them to the nematode lab in Blackville.

Clemson Extension does have a John Deere Gator with an automatic soil sampler that agents have access to if assistance is needed for pulling samples.

If you have any questions, please contact your local Extension Agent.