Nematode Testing Service

We are closed

The Nematode Testing Service is closed on June 30th, 2023.

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Nematode Testing Service, Extension Service Plant Clinic

Oregon State University

2701 SW Campus Way                                         

Corvallis, Oregon 97331

T 541-737-5253 | F 541-737-3573 |

Dear valued client,

The Oregon State University Nematode Testing Service will be closing in June 30 2023

The OSU Extension Nematode Testing Service has operated for nearly 40 years under the direction of Dr. Russell Ingham and under the auspices of his nematode research program in the Department of Botany and Plant Pathology.  When Dr. Ingham retired in December 2021, so too did BPP Nematology.  It is no longer feasible to operate the service outside of the research program and without the oversight of professorial direction. 

The association of the nematode diagnostic lab with the OSU nematology research program, which dates back to the tenure of post-WWII nematology pioneer Dr. Harold Jensen (1950-1984), enabled the testing lab to offer non-profit diagnostic service and management advice on a non-profit basis.  In turn, the experience of our testing service clientele contributed to our understanding of the impact of nematodes on Pacific northwest crops.  Thank you for sharing your nematodes and subterranean insights, it has been a pleasure to work with you.

I would also like to acknowledge former Nematode Testing Service nematologists Kathy Merrifield and Gene Newcomb whose expertise, wisdom, and wit indelibly shaped the service and many happy memories as well.  

The OSU Plant Clinic diagnostic facility and Insect ID Clinic continues to offer their comprehensive disease diagnoses and specialized identification services under the direction of Melodie Putnam.


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Nadine Wade

OSU Nematode Testing Service

2701 SW Campus Way

Corvallis, OR 97331