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What's Ailing Your Beans
June 01, 2002

North Dakota State University and University of Minnesota laboratories can help you diagnose problems with dry beans and other crops this season.

Heres a guide to the services they offer, fees and contact information:

NDSU Plant Diagnostic lab

Everything from herbicide injury to disease identification are part of the services offered at the NDSU Plant Diagnostic Lab. You can even email the diagnostic lab digital pictures and they try to identify the problem online.

Fees are as follows:

  • Routine Diagnosis/Identification  ND Resident - $15; Out of State - $25
  • Culture/Special Test - $30
  • Dutch Elm Disease - $25
  • Herbicide Testing  Pursuit┬« Soil Test, $150; Roundup┬« Residue (plants only), $150; visual evaluation, same price as a routine diagnosis.
  • Soybean Cyst Nematode screening - $25

For information, contact:
Plant Diagnostic Lab
Waldron Hall, Room 206
NDSU, Fargo, ND 58105
Phone: (701) 231-7854
Web site:

Minnesota Plant Disease Clinic

The Plant Disease Clinic is available for disease diagnosis on all commercial crops grown in Minnesota. Routine diagnosis cost $20-$25. The clinic also offers nematode analysis, virus, rhizomania, aphanomyces and several other tests. Fees vary.

For more information, contact
Plant Disease Clinic
495 Borlaug Hall
1991 Upper Buford Circle
University of Minnesota
St. Paul, MN 55108-6030
Phone: (612) 625-1275
Fax: (612) 625-9728

Submission tips

The labs offer the following tips on collecting and submitting samples:

  • Collect living plants that exhibit varying stages of decline.
  • Collect as much of the living plant as possible, several plants should be sent if feasible.
  • Do not submit dead plants.
  • For herbaceous plants, collect the entire plant, including as much of the root system as possible.
  • Dig out (dont pull) several symptomatic plants and shake excess soil from roots.
  • Bundle plants together and wrap roots only in a plastic bag, allowing stems and leaves to hang out of the bag.
  • Wrap the entire bundle of plants in newspaper and place it in a cardboard box.
  • Wrap mushrooms, roots, fruits and other soft, fleshy samples in a sturdy box. Most other samples can be placed in a plastic bag, which is loosely folded at the top, but not sealed.
  • DO NOT add moist paper towels or the specimen may decompose during shipping. If possible place several leaves in a flat paper envelope and the rest of the plant in the bag.
  • For nematode analysis, ship soil in plastic bags and keep refrigerated until shipped. It is important that nematode samples are not exposed to high temperatures. Specific guidelines for sample collection are available upon request.
  • For insect samples, send small specimens in a vial of alcohol; never in an envelope. Pack larger insects, such as moths, in cotton, in a sturdy box.
  • Ship samples immediately after collection. Ship samples by overnight delivery or mail early in the week to insure fast delivery. Plant samples often decompose if left in the post office over the weekend.


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Northarvest Bean Growers Association | 50072 East Lake Seven Road | Frazee, MN 56544
Ph: 218-334-6351 | Fax: 218-334-6360 | Email: