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NC State Extension

Contacts & Directions

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Note: The Turf Diagnostics Lab is housed separately from the rest of the PDIC. See their website for details.

The Plant Disease and Insect Clinic is open Monday-Friday, 8 a.m.-5 p.m., except when otherwise stated (university holidays, emergency closures, etc.).


Disease/Pathology Phone: 919-515-3619

Insect Phone: 919-515-9530


Mailing Address for nonturf samples.
See note above regarding turf & ornamental grass samples.
Plant Disease and Insect Clinic
North Carolina State University
100 Derieux Place
1227 Gardner Hall
Raleigh, NC 27695
Plant Disease and Insect Clinic
North Carolina State University
Campus Box 7211
Raleigh, NC 27695-7211


Important: Before heading to campus, please read the information labeled “Method 2: Bringing the sample to the PDIC” on our Packing and Shipping page.

For any samples other than those for diagnosis of diseases of turf and ornamental grasses, we are located in 1227 Gardner Hall on the north campus of North Carolina State University. The street address is 100 Derieux Place. Note to GPS users: not all routes are open at all times of day. There are two choices when when coming to the clinic in person.


Map showing how to reach the PDIC from Hillsborough St.

Map from Hillsborough St. CLICK TO ENLARGE

  • Turn south from Hillsborough St. onto Dan Allen Dr.
  • At the traffic light, turn left (east) onto Yarbrough Dr.
  • Continue past the greenhouses and Thomas Hall, and turn left (north) onto Derieux Place.
  • Enter the small parking lot at the end of Derieux Place and look for an unoccupied loading zone (LZ) parking spot.
  • Important: You must call NC State Transportation at 919-515-3424 to request a virtual 30-min loading permit.
  • Enter the door to Gardner Hall at the north end of the parking lot and follow the signs to the Plant Disease and Insect Clinic.
  • If you have a particularly large sample, feel free to come and ask us to help you bring it in or subsample from it.
  • Note: Before 9 a.m. daily it is possible to reach Yarbrough Dr. via Dan Allen Drive from Western Boulevard.


Map showing walking route from the Dan Allen Drive parking deck to the PDIC.

Map from Dan Allen Parking Deck. CLICK TO ENLARGE

  • From Hillsborough St., turn south onto Dan Allen Dr.
    (Note: the approach from Western Blvd. is closed from 9 a.m. to 5 p.m.).
  • Turn right at the first traffic light, just before the railroad bridge.
  • Proceed a few hundred feet to the credit-card-pay entrance to the parking deck, and park your vehicle.
  • Gardner Hall is about 200 yards to the east of the parking deck.
    Follow the walking route indicated by the yellow dots on the map.