Sep 25, 2019
Samples due to Maine Potato Disease Testing Lab by Oct. 18

Growers wanting voluntary post-harvest testing by the Main Potato Disease Testing Lab for Blackleg or Bacterial Ring Rot are urged to submit all samples into the lab by Oct. 18. The lab cannot guarantee testing results will be delivered prior to Dec. 31 for voluntary samples received after October 18.

For Blackleg testing, growers do have the option to core and peel their own samples so that testing results can be expedited. If you wish to do so, contact the lab (769-5061) about how to properly process your sample.

For growers wanting both BRR and Blackleg tested for, the lab will need two separate samples. All BRR samples need to be 400 tubers.

Reminder to please not leave samples without filling out the proper paperwork at the time of drop-off. Any samples without properly documented paperwork associated with them will not be tested.

Reminder: All post-harvest test samples for certification will be lab-tested again this year.

Requirements and Pricing of Voluntary Tests


  • 200Tuber Composite- $100, Add $50 per additional species tested
  • 200Tuber Batch (8x25tuber composites)- $300, Add $200 per additional species tested
  • 400Tuber Composite- $200, Add $100 per additional species tested
  • 400Tuber Batch (16x25tuber composites)- $600, Add $400 per additional species tested

Bacterial Ring Rot

  • 400 Tuber- $225

Growers must ensure that all proper paperwork and submission forms are filled out when dropping off their samples. For more information, call the lab at 769-5061 or email [email protected].


75 Applewood Dr. Ste. A
P.O. Box 128
Sparta, MI 49345


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