OSU Logo

OSU Nematode Testing Service - Services and Fees


Fees are based on submission of samples taken according to the sampling and submission guidelines.

Additional fees may be assessed for deviations from these guidelines.

Our fee for a soil or root nematode extraction went up from $45 to $50, effective July 1, 2015


Statutory Authority: ORS 351. Filed and effective June 22, 1976. Revised 1998, 2003, 2004, 2006, 2007. 2010, 2012, 2013

  • Soil sample: extract and count plant parasites by genus: $50
  • Root sample: extract and count plant parasites by genus: $50
  • Species identification: $35 per genus per sample for routine species*; $58/hour for others (requires additional research time)
  • Other services include foliar nematode extraction and ID, cyst extraction and ID, root-knot egg extraction, pinewood nematode extraction and ID, and seed gall nematode extraction: charge will be negotiated with client prior to service.

*Routine species identifications include species of plant-pathogenic genera commonly encountered in the Pacific NW quadrant of the United States: Pratylenchus penetrans, P. neglectus, P. crenatus, P. vulnus, and P. thornei; Meloidogyne hapla, M. chitwoodi and M. naasi; Paratrichodorus allius, and Xiphinema americanum