Nematology

Feb 19, 2014 – Soils have been very cold or frozen, which may lead to decreased numbers of nematode larvae as they go deeper into soils.  You may send in soil for soybean cyst nematode (SCN) egg assay ($10 per test) during the time that other larval counts may not be accurate. Please indicate SCN egg on the form, or call or e-mail if you have other questions.

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The University of Delaware Nematode Assay Service accepts soil samples for nematode analysis and SCN egg counts.  Plant samples suspected of having nematode issues, i.e. root knot nematode, are accepted through the UD Plant Diagnostic Clinic.  Samples must be accompanied by the form and payment.

  • University of Delaware Nematode Assay Information Sheet Submission Form and Instructions_pdf
  • Fees (checks payable to the University of Delaware please):
  • Routine nematode assay for plant parasitic nematode larvae- $20
  • Routine nematode assay for plant parasitic nematodes for  tree fruits and grape$25
    • Individual counting is necessary for Xiphinema nematodes for fruit samples which takes more time
  • Soybean cyst nematode (SCN) egg assay – $10
  • Routine nematode assay plus SCN egg assay -  $30

Soybean Cyst Nematode Resources

Nematode Threshold and 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