Arborists and Applicators

We provide a list of tree care professionals who have been through a COMTF training session on symptom recognition/sampling and the use of the Agri-fos/Pentra-bark treatment and have given their names and contact information for this referral list. These persons have been trained to recognize Phytophthora ramorum in the field, and have been informed of the process for collecting and sending samples for analysis with the California Department of Food & Agriculture. Note: This list should be viewed as a resource only, and is not an endorsement by the Task Force of any specific company or service.

You can access the Trained Professionals List as a PDF or download the original trained professionals spreadsheet to more easily sort for professionals in your area. Please note that while a person may be listed in a particular county, most professionals work much further afield than that. If you are unable to find someone in your immediate area, try contacts in the neighboring counties as well.

For Professionals

If you are a professional who needs to update contact information, please use our online form to submit your information. Once we have your complete and current contact information, we will update the online list.

If you are a professional who would like to be added to our list, you can find our schedule of workshops and trainings on the Calendar of Events. If our current list of training options does not meet your needs, please fill out a Workshop Request so we can better plan our workshop schedule.