Plant Diagnostic Clinic

Welcome to the UF/IFAS SWFREC Plant Diagnostic Clinic in Immokalee. We are a branch of the Florida Plant Diagnostic Network. We are open Monday through Friday 8:00 am – 5:00 pm (except state and UF holidays). We can be reached at 239-658-3432 (ext. 13432) or We serve the state and region by offering disease, insect, and weed identification services for commercial, homeowner, and extension plant samples. We are currently accepting in-state samples.  The clinic does not test soil samples.

We now offer weed identification services, including weed and invasive plant ID, herbicide phytotoxicity diagnosis, and herbicide residue management. 

Sending Samples for Diagnosis

All samples must include a completed sample submission form. Please include as much detail as possible to help us with diagnosing plant problems.  Forms may be submitted electronically (via fax or emailed to or printed and included with the physical sample.  Be sure to select the correct form for the service requested, either disease diagnosis or weed identification.  Both forms include detailed sample submission instructions on the second page of the form.

Plant Diagnostic Clinic - Submission Form

Plant Diagnostic Clinic - Weed Identification Form

The samples, including the sample submission form, can be mailed or submitted in person at the following address:

Mailing Address

2685 State Road 29 North
Immokalee, Florida 34142
Phone: (239) 658-3431
Fax: (239) 658-3403

Weed identification can be made either by submitting a fresh plant sample to the clinic using one of the methods listed above, or by emailing a high-quality photo to  

For more information about weed identification services, contact Dr. Ramdas Kanissery at or 239-658-3455. 

New County Extension Agent Voucher

Links and Resources

UF/IFAS SWFREC Plant Diagnostic Clinic

We are currently accepting in-state samples.