Submit Sample

Samples accepted in person and digitally.
All samples require appropriate request form.

A full and complete history of the specimens, surrounding plants, and symptoms are needed. For detailed sampling instructions, please select a category on the left-hand side of the screen that best fits your sample type. 

PLANT DIAGNOSTIC REQUEST  AND INSECT/ARTHROPOD ID REQUEST 

Samples submitted digitally: 
Click the link and fill all the required fields: 

Online sample submission

Questions, completed submission forms and further relevant digital images can be sent by email to ppdc@osu.edu
 

Credit card payment can be submitted at: 

PPDC Credit Card Payment

Samples mailed:
C. Wayne Ellett Plant and Pest Plant Diagnostic Clinic 
Department of Plant Pathology - 234 Selby Hall
c/o Dr. Francesca Rotondo
1680 Madison Avenue

Wooster, OH, 44691


Samples hand-delivered:
Requires coordination with Dr. Rotondo: (330-263-3721) | rotondo.11@osu.edu


TURFGRASS DIAGNOSTIC REQUEST 

ACCEPTED AT THE COLUMBUS CAMPUS TURFGRASS CLINIC
Ohio Turfgrass Foundation Research and Educational Facility
2710 North Star, Columbus, Ohio 43221
Click for more Turfgrass Sample submission details. 


NEMATODE DIAGNOSTIC REQUEST 

ACCEPTED AT THE SOYBEAN PATHOLOGY AND NEMATOLOGY LAB IN COLUMBUS
Attn: Horacio Lopez-Nicora, Ph.D. (lopez-nicora.1@osu.edu)
110 Kottman Hall 
2021 Coffey Rd., Columbus, Ohio 43210
Click for more Nematode Sample submission details.


General rules to collect and submit a sample

Collect symptomatic plants or part of the plants that are still alive and that are showing symptoms. If possible, include different stage of symptoms.

For entire plants:

  •  Bag (plastic) the roots and seal at the soil line with a twist tie or a rubber band. Do not cut the root ball off the above-ground plant parts.
  • Cover the top plant growth with a second plastic bag.
  •  For leaf or stem tissue, place the sample in a zip-seal bag as soon as it is collected.  Do not use paper bags
  • Include a completed Plant Sample Submission form in the package and provide as much as information you have available (plant variety, history of the problem, recent pesticide applications and the number of plants affected)