Crop Diagnostic Services

Provincial Crop Diagnostic Lab

The Crop Diagnostic Lab assists growers in identifying diseases, weeds and insects of agricultural and horticultural crops.

Identification and diagnosis of agricultural samples from Manitoba are free of charge.

For non-agricultural submissions such as home gardens, trees or ornamentals there is a fee of $10 + GST per sample. Cheque or cash payment only.  

Samples can be submitted to one of the  AGR/MASC Service Centres or to the lab at 545 University Crescent, Winnipeg, MB. Contact the lab at (204) 945-4825 or


Remember to include a completed identification or diagnostic submission form with each sample.

Insect-Weed Identification Form 

Disease-General Diagnostic Form 

Updates to testing progress or lab submission results will be available within 7 working days from when the sample was received at the lab. Results are sent to email address provided.

Crop Diagnostic Lab provides visual assessment only for symptoms of chemical injury. A lab that does herbicide testing would be recommended for confirmation of type and quantity of chemical exposure, if required.

For suspected pesticide incidents use the forms below for assistance.

Pesticide Incident Check List

Pesticide Incident Reporting Form



Crop Diagnostic School

To learn more about spotting problems in your fields, plan to attend the Crop Diagnostic School in your area this summer. 


Horticulture School

The Horticulture School provides horticulture producers with learning opportunities to improve yield and quality of their fruit and vegetable crops.  This event is of interest to market gardeners, vegetable and fruit producers.



Pest Surveillance Initiative (PSI) is a project of the Manitoba Canola Growers Association and Manitoba Agriculture. 
Visit the PSI Website
  • Services offered: qPCR analysis for clubroot presence in soil; PCR testing for glyphosate herbicide tolerance in kochia (in-season).


 Other Crop/Seed Diagnostic Labs in Manitoba



For more information contact an  AGR/MASC Service Centre