Nematode Services

The University of Delaware realizes the importance of a local nematode assay service to our growers. However, changes in staff and resources have required us to change when and how this service is offered. To maximize resources, predictive soil nematode assays will only be conducted by the service from April 1- May 1, 2015 and from October 1-November 1, 2015Soybean cyst nematode (SCN) egg assays, the most accurate means of assessing SCN, will be available throughout the season.

Fields with issues during the growing season (troubleshooting samples) will be accepted as needed; however, Dr. Nathan Kleczewski must be contacted prior to submitting troubleshooting samples at or 302-300-6962.  Remember that the service only accepts commercial vegetable and field crop samples from within Delaware.

The 2014-2016 UD Vegetable and Field Crop Nematode Assay Service price structure is as follows:

Assay Price as of September 1, 2014
Troubleshooting; Predictive survey $50 per sample
Soybean cyst nematode egg assay $30 per sample
  • Send agronomic or vegetable samples, samples to 151 Townsend Hall, Newark, DE
  • Nematode_Instruction_and_Form_2015-Samples will not be processed without submission form and fee.
  • Fees – checks payable to the University of Delaware or:
  •  We can now accept credit card payments for nematode samples. Here is the link to the form, please bookmark for future use:

Fruit and Ornamental nematode samples from Delaware can be sent to the Virginia Tech Nematode Assay laboratory at the following address:

Nematode Assay Laboratory, 115 Price Hall
Virginia Tech, Blacksburg, VA 24061-0331 Phone: (540)231-4650
Fax: (540)231-7477, Email:
Web site:  (for sample submission fees, instructions, and forms)


Delaware Soybean Cyst Nematode Resources

Delaware Nematode Control Fact Sheets

Two Nematode Sampling Videos Featuring Bob Mulrooney

How to Sample for Nematodes. Click to play.
Diagnosing Nematode Damage in the Field
You Tube Video How to take Nemotode Samples YouTube video Diagnosing Nematode Damage in the Field