You are here

Free nematode testing for Mississippi soybean producers

Effective Dates: April 1, 2024 through March 31, 2025 (or until 500 samples have been submitted to the project)


  1. A nematode sample submission form (F488) MUST be completed and accompany all soil samples submitted for nematode analysis. This form is available at
  2. Soil MUST be from Mississippi soybean fields.
  3. Land MUST have been used to produce soybeans within the last two growing seasons (2022 or 2023).


  • Use nematode bags from your county Extension office, or quart-sized sealed plastic bags.
  • Fill bags with approximately 1 pint of soil
  • Label each bag for your reference and write each label down in the Sample Name column on the nematode sample submission form.
  • Keep samples cool (do not freeze). Do not expose soil samples to high temperatures or direct sunlight. Do not let samples dry out (make sure bags are sealed tightly)/ DO NOT ADD WATER.
  • Mail samples to:
    • Extension Plant Diagnostic Lab
      405 Garrard Rd. East
      Mail Stop 9612
      Starkville, MS 39759

OR, samples may be brought directly to the lab: Bost Extension Center, Room 10

Service Provided

The diagnostic lab will process soil samples in our usual manner, including testing cyst viability, and will provide our usual report detailing the type and quantity of all plant parasitic nematodes found in the soil. Identification will only be to genus level (i.e. reniform (Rotylenchus sp.).

Dr. Chang Liu is covering the cost of analyzing up to 500 nematode samples with funding from the Mississippi Soybean Promotion Board.

Print Friendly, PDF & Email



A cucumber leaf with disease lesions rests on a hand.
Filed Under: Agriculture, Crops, Soybeans, Sweet Potatoes, Plant Disease and Nematode Diagnostic Services, Vegetable Diseases, Vegetable Gardens April 25, 2024

Did you know the Mississippi State University Extension Service has a laboratory that is designated to diagnose plant diseases and nematodes? Yes, it does! Learn how the Mississippi State University Extension Service Plant Diagnostic Laboratory and its scientists protect the crops that provide our food and fiber along with other home and garden crops.

A woman works in a laboratory.
Filed Under: Sweet Potatoes, Soil Testing, Plant Disease and Nematode Diagnostic Services March 23, 2023

Sweet potato growers in Mississippi can get free nematode testing of soil samples they send to Mississippi State University from now until Dec. 31, 2024. The samples can be submitted in nematode bags available at local county MSU Extension Service offices; samples are also accepted in quart-sized, sealed plastic bags.

Image shows a transparent, worm-like creature.
Filed Under: Soil Health, Plant Disease and Nematode Diagnostic Services, Soil Testing August 31, 2020

The Mississippi State University Extension Service is offering another year of free testing for often overlooked nematode pests that frequently cause poor crop performance.

Success Stories

A man wearing a light blue collared shirt and a grey zip-up jacket stands next to a short-haired woman wearing a black sweater.
Volume 5 Number 1

David Fulgham did not hesitate to show his support for the Mississippi State University Extension Service Plant Pathology Diagnostic Lab when his chance came.

Select Your County Office

Your Extension Experts

Portrait of Ms. Clarissa J. Balbalian
Diagnostic Lab Manager
Portrait of Dr. Alan Henn
Extension Professor
Portrait of Dr. Rebecca A. Melanson
Associate Extension Professor