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  • $20*: In-state samples submitted either through the North Carolina Cooperative Extension Service (including Extension Master Gardener Volunteers) or by non-profit organizations, State of North Carolina agencies, public schools, community colleges, and institutional members of the UNC System. Important: this discounted fee is only available with on-line submission of sample information.
  • $30*: In-state samples submitted directly to the PDIC by the public, landscapers, pest control operators, consultants, etc., and all samples submitted on paper forms without online submission of sample information.
  • $75*: Out-of-state samples. Please see these important instructions for submitting samples collected outside the state of North Carolina.
  • No charge: digital, image-only samples submitted online through our database app; for further instructions please visit the How to Submit a Sample page. The diagnostician will determine if the images are adequate for a reliable diagnosis. If a physical sample is necessary for diagnosis, that sample will be charged the applicable fee. Do not send images for diagnosis by email.
  • No charge: in-state samples from research projects at land-grant universities (North Carolina State University and North Carolina A&T State University) or their outlying field research stations.
  • No charge: samples from North Carolina nurseries for verifying the presence of boxwood blight. See the details on this service.

*Important: Samples paid online via credit card will have a 5% processing fee added to the total. See the Pay My Bill page. For diagnoses requiring analysis by external laboratories (e.g. virus testing of grapes or cane fruits by the NC State MPRU), you will be contacted regarding any additional fee before it is incurred.


  • Pear baits for Phytophthora testing in irrigation water (set of 3 pears representing one irrigation source): charged as one sample per schedule above.
  • Other special services. Please call 919-515-3619 or email if you have need of a specialized diagnostic service or support for a survey effort.