OSU–Hermiston Plant Pathology Laboratory Testing Services
General diagnosis = $60
This service includes a thorough microscopic exam, moist chamber incubation, isolation onto selective and non-selective nutrient media (as needed), and identification of isolated fungi or bacteria to genus through morphology or PCR, when possible. PCR will be used for viruses when possible. Note that some viruses require methods for identification that are not included in this fee. Call for additional information about this service. Fee includes written reporting and recommendation. Call for additional information about this service.
Soil pH and total soluble salts = $10
This price is for soils submitted specifically for pH and total soluble salts measurement. Soil submitted with a plant sample will have these measurements taken, when requested, at no additional charge.
Ship samples to:
Kenneth Frost
Extension Plant Pathology Laboratory
2121 South First
Hermiston, OR 97838
Soil Fungus Assays
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Fee Schedule per Soil Sample: |
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|
Pathogen |
**Cost/sample 1-4 samples |
**Cost/sample 5+ samples |
|
Verticillium |
$35 |
$33 |
|
Pythium |
25 |
23 |
|
Fusarium |
25 |
23 |
|
Phoma terrestris (Onion pink root) |
30 |
28 |
|
Pythium, Fusarium spp., and Phoma terrestris |
80 |
74 |
|
Pythium, Fusarium, and Verticillium spp./ C. coccodes |
85 |
79 |
|
** Prices listed are per soil sample. Please allow approximately 2-3 weeks for Pythium, Fusarium, and Phoma terrestris assays and 5 weeks for Verticillium/C. coccodes (black dot). |
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Metalaxyl-Resistant Pythium Soil and Culture Assay
The soil assay determines the percent of the total Pythium spp. present in the soil that are resistant to metalaxyl. A culture-based assay is used to determine if any of the Pythium spp. recovered from infected plant material are resistant to metalaxyl. The fee for these tests is $40
Silver Scurf and Black Dot Testing of Potato Tubers
Silver Scurf and black dot tuber assays are conducted on seed and market tubers. The fee for this service is $50 for an individual disease evaluation (black dot or silver scurf) per lot or $65 for both black dot and silver scurf evaluation.
Virus Testing
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PCR Fee Schedule per Sample |
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# of Samples |
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# of Viruses to be Tested |
1-4 |
5-24 |
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1 |
$35 |
$30 |
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2 |
40 |
34 |
|
3 |
45 |
38 |
|
4 |
50 |
42 |
|
5 |
55 |
44 |
|
6 |
60 |
48 |
Leaf samples are generally tested individually but may be tested in bulk (up to 5 leaves) for more economical testing of large numbers of samples. Please note: bulk testing is less able to detect low titers of virus. Call for special pricing of very large sample lots and to learn which viruses can be detected by this method.
For further information, contact:
Hannah Rivedal
OSU HAREC, Extension Plant Pathology Laboratory
2121 S. First Street
Hermiston, OR 97838
Office 541-567-8321
The fee schedule, sample submission form, and directions for sample submission can be found at: https://extension.oregonstate.edu/harec/plant-pathology-diagnostic-labor...
Fees are subject to change. See the website for current price list.
Samples must be accompanied by a completed sample submission form. Delays in sample processing may occur if a sample submission form is not included with shipped samples.
Digital pictures can be E-mailed to:
rivedalh@oregonstate.edu
Note: Failure to confirm the presence of an organism in or on a submitted sample does not establish the field to be free of that organism.