Utah Plant Pest Diagnostic Lab

Submission Form:

Click here to access our submission form, and read below for more instructions and information on sample submission. 

Services and Fees: 

  • $10.00 - Basic services (visual / microscopic examination, pest ID & management). 
    • This includes, but is not limited to, all turf grass samples and most arthropod identifications (insect, spider, etc.).
    • Most samples submitted fall under basic services. 
  • $15.00 - Pathogen culturing
    • Contact the lab prior to sample submission for pre-screening. 
    • Includes basic services.
  • $30.00 - DNA / virus testing - Plant diseases
    • Contact the lab prior to sample submission for pre-screening.
    • Includes basic services and pathogen culturing as needed.
  • $30.00 - DNA testing - Arthropod samples
    • Contact the lab prior to sample submission for pre-screening and more information.
    • Most insects can be identified sufficiently with a basic service, but DNA testing may be needed in certain cases. 

If you have any questions about what service you need, contact our lab or visit your local county Extension office for pre-screening.

If you submit a sample for disease culturing, DNA or virus testing without contacting the lab prior to submission and we cannot perform the desired test, we will conduct the "basic services" listed above. No refund for overpayment of testing services will be given. View our refund and privacy policies for more information.


What We Do Not Test For: 

We do not test for human pathogens or parasites*, food pathogens, verticillium for alfalfa export certification, verticillium (with some exceptions - contact us prior to submission), Dutch elm disease, bacterial leaf scorch, Phythophthora, fungi or pathogens in soil, herbicides, soil dwelling nematodes, or plant and soil nutrients**

*We do accept samples of ticks, bed bugs, fleas, bird mites, etc. collected from the home or structure that have not come in contact with blood, human secretions, hair, or skin. For these types of diagnostics, please see your medical care provider. Samples including the aforementioned arthropods must be submitted in a vial of rubbing alcohol or ethanol. We reserve the right to not handle and identify any sample that we believe violates these submission protocols.

** For plant or soil nutrient testing, contact the USU Analytical Lab.

If we can not perform the desired testing, please contact one of the following labs for further assistance: 


Steps to Submitting a Sample:

1) Complete the submission form and include with your sample.

2) If submitting a plant for disease diagnosis: take photos of the issue(s) and email them to us prior to submitting a sample (utahpestlab@gmail.com), or print out physical photos to be mailed in with your sample. 

  • Type of images:
    • Include a range of perspectives of the plant, turf area or damage, from close-up to over-all pictures of the yard or area of interest. We are interested in seeing the damage but equally interested in the surroundings (overall environment) of the plant and property, etc.
    • Only sending close-ups of dead grass or dead branches/leaves may not help with diagnosis. 

3) Prepare your sample appropriately based on the type of sample you are submitting:

4) Mail or deliver your sample along with the submission form, appropriate payment (unless requesting an invoice for card payment), and photos (if submitting physical prints). See below for our shipping address and walk-in directions. 


Mail Samples To:

Utah Plant Pest Diagnostic Lab
5305 Old Main Hill
Logan, UT 84322

Sensitive plant tissues or living organisms should be shipped via expedited mail service (e.g. overnight or 1- to 2-day shipping), especially during hot summer months when samples can be destroyed by prolonged delivery. Please take note of our University Holiday Calendar and plan sample shipment accordingly to prevent sensitive samples from being further delayed; the UPPDL is not open on university holidays. 


Walk-In Samples: 

We currently recommend mailing in your sample(s) if possible due to building construction. If you need to hand deliver a sample, you can drop it off in the Plant Pest Diagnostic Lab (room 203) in the Biology and Natural Resources Building (building code "BNR"). Use the Campus Map to locate the building. The lab will be available for sample drop-off between 8:30 am and 4:30 pm M-F, excluding holidays, pending changes in policies due to Coronavirus. We apologize for any inconvenience construction may cause when accessing the lab. Be advised that face masks are currently required inside USU campus buildings.  


How Long do I Have to Wait for a Diagnosis?

Normally, you will receive a response within 2 weeks of submitting your sample depending on the types of tests needed. Expect longer for plant pathology submissions.