Sending a sample for Diagnosis:
The accuracy of the disease diagnosis is directly related to the quality of a plant sample submitted for diagnosis. The following are general guidelines for collecting and submitting a sample for disease diagnosis.
- Provide freshly collected specimens that represent the range of symptoms that you
- Provide as much plant material as possible, including roots, top growth and fruit.
- Do not send dead plant material. Plants material that is already dead can’t be diagnosed.
- Provide lots of information about the sample, such as plant variety, history of the problem, recent pesticide applications and the number of plants affected.
- When mailing samples:
- For entire plant samples, 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.
- Separate fruit (i.e. berries, apples, peaches) samples from roots and top growth material. Place fruit in a zip-seal bag as soon as it is collected.
- Mail sample in a sturdy container. Entire plant samples should be enclosed in boxes or other crush-proof packaging.
- Only send samples by overnight delivery. Samples should be mailed Monday through Wednesdays.
Send samples to:
Fruit Pathology Laboratory
Dr. Melanie Lewis Ivey
1680 Madison Avenue
229 Selby Hall
Wooster, OH, 44691