Agronomic Services - Nematode Assay

Fees per Sample

Report TypeIn-StateOut-of-State
Predictive$10$20
Diagnostic$10$20
Research$15$25
Pinewood$15$25
Regulatory$20N/A
Molecular Diagnosis$40$50

Purpose

Plant-parasitic nematodes are microscopic threadworms, most of which live in the soil and feed on plant roots. The Nematode Assay laboratory analyzes soil and plant material  for the presence of plant-parasitic nematodes. Results and recommendations may be used to increase crop yields, save on pesticide costs and minimize runoff of harmful chemicals into surface or ground waters. A nematode assay can:

  • predict a nematode problem on a specific crop for an upcoming season
  • diagnose an existing nematode problem
  • suggest appropriate management strategies

The Agronomic Division accepts nematode assay samples from both individual growers and research institutions.  Select the submission process that best describes your operation. If you are uncertain about your submission category, please contact the Laboratory Director or Agronomist.

Frequently Asked Questions

Tab/Accordion Items

Predictive nematode sampling is best done in the fall after harvest. Diagnostic samples can be collected any time of the year there is a suspected problem.

Typical turnaround time varies.  From October through November, turnaround time is usually 2 weeks.  From December through February, expect a longer turnaround time from 4 to 8 weeks.

Yellowing or dying plants appearing in patches, could indicate a nematode problem.

Chemical or other decontamination techniques are not needed.  Brushing the soil of the tools is usually sufficient.

Go to our Field Services page. Click on your county to view the contact information of the Regional Agronomist in your area.

Contact Information

Weimin Ye, Ph.D.

Nematologist 919-664-1607 weimin.ye@ncagr.gov

David Allgood

Nematode Molecular Diagnostician 919-664-1612 David.Allgood@ncagr.gov