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Contact:  Facebook  |  (352) 392-1795  |
Address: 2570 Hull Rd, Gainesville, FL 32603
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The UF/IFAS Plant Diagnostic Center is located in Gainesville, FL on the University of Florida's main campus. Our mission is to provide plant diagnostic knowledge and services to solve plant health problems. You can tour our lab virtually here.  Our lab is part of and accredited by the National Plant Diagnostic Network.

Sample Submission Forms and Information

The UFPDC is partially supported by the State of Florida as an extension service to the citizens of the state as well as federal grants such as the USDA-NIFA National Plant Diagnostic Network program, substantially offsetting the full cost of the diagnostic process.  Sample fees charged to the sample submitter are a co-pay of the full cost of diagnosis. Additional special services requested are charged at cost recovery.  Sample fee payment is required at the time services are rendered.  We accept credit card payments via our sample submission forms or via a link in your invoice to our online payment portal.  These fees directly support the students, staff, and supplies required to perform the diagnostic service. Please select the appropriate diagnostic form for your sample type and indicate payment on the form or pay online upon receipt of the invoice to ensure timely release of the final diagnostic report.

Sample Collection Instructions

Submission Forms


International Sample Submission

The PDC-GNV accepts and diagnoses samples from outside of the United States. The diagnostic fee is $250 for international general samples and $300 for international turf samples. Those interested in our international service must first email Dr. Carrie Harmon,, to obtain forms, permits, and pertinent collection information.

Hemp Sample Submission

The UF-IFAS Plant Diagnostic Center in Gainesville, FL can receive industrial hemp samples for diagnosis. Samples must be accompanied by a current FDACS commercial license and a completed sample submission form. Please call the lab with any questions: 352-392-1795.



Hours of Operation

9:00 am to 5:00 pm, Monday-Friday; Closed weekends and UF holidays*

**Our after-hours sample drop-off cooler is always ready for your samples, even when the lab is closed. In-person delivery works best, or you can indicate to a courier that they should leave the package in the cooler. Make sure the package does not require a signature. We do not recommend that you use the US Postal Service; they will not deliver after-hours, on weekends or during UF holidays.

As a University of Florida laboratory, we follow UF’s closure schedule. We also close for the last two weeks of December to close out samples, bookkeeping, and projects.

2024 Holidays (Lab Closure)


University of Florida Feature - July 2020

Lab Overview - November 2018

UF/IFAS Plant Diagnostic Center - May 2013

Diagnostic Center Personnel

Annual Reports


PDC Anniversary link

March 2023

USDA visit link

May 2023

UFIT Workshop link

March 2023