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Potato Disease Testing


The NDSU Plant Diagnostic Lab performs limited seed health and phytosanitary testing for seed potatoes.

We are USDA-accredited to test seed potatoes for Clavibacter michiganensis subsp. sepedonicus (bacterial ring rot) for export to Canada.

If you have any questions, please contact us by phone at 701-231-7854 or by email.


We reserve the right to change our prices at any time without further notice. 


Seed health and phytosanitary testing by the NDSU Plant Diagnostic Lab is completely self-supportive. The Lab is intended as a service to the seed and grain industries in an effort to bring the latest testing technology to the growers.

The NDSU Plant Diagnostic Lab cannot be responsible for the accuracy or uniformity of samples. Those who submit samples should strive to provide representative samples. Since disease losses in the field are also determined by conducive environments and additional factors, a low disease rating or an organism that is not detected in a submitted sample is not a guarantee that losses will not occur.