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In response to the COVID-19 epidemic, the Plant Diagnostic Clinic will be providing diagnostic support to our clients primarily via email and phone. We will limit the number of physical samples that are received and processed in order to minimize the risk of COVID-19 to our staff and students.

Before sending a sample, please email us at You may also call us at (970) 491-6950 and leave a message. We are doing most of our work remotely, but we will check messages regularly and return your call as soon as possible.

We know that these changes are difficult but we will do our best to continue to help with your diagnostic needs in these challenging times.

The PDC team

The Plant Diagnostic Clinic offers plant disease diagnosis, agricultural insect identification, plant identification, and provides recommendations for the client. We are the Colorado state lab in the National Plant Diagnostic Network. If you’re having any problems with your plants, let us help!

Submit a Sample

For a list of services we offer and detailed instructions on how to submit your sample

Location and Mailing

Click below for the location of the Plant Sciences building and mailing address.

Contact Information

The Plant Doctors at CSU’s Plant Diagnostics Clinic are happy to answer any questions you may have so please don’t hesitate to contact us!

Clinic Director: Ana Cristina Fulladolsa, PhD
Voice: 970-491-6950
Fax: 970-491-3862

Meet the Team

Interested in learning more about who will be diagnosing your plants?

Disease of the Month

Bacterial leaf streak (BLS) in corn

  • Caused by the pathogen Xanthomonas vasicola pv. vasculorum

  • First identified in Colorado in 2014

  • Symptoms include irregular necrotic lesions surrounded by a yellow halo

  • The bacteria often oozes from the lesions and is spread by rain and hail

  • This pathogen survives in corn residue so control of crop debris and rotation are important management strategies for BLS



-Prepared by Tessa Albrecht (2019)

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