Services
and fees
Insect/mite and other arthropod
identifications are currently provided free of charge.
Disease Diagnosis Services
Plant disease diagnosis = $45.00 per sample ( samples submitted via OSU county extension offices are $40.00 each).
This is our most frequently requested service. The service includes
overall evaluation, including microscopic exam, results from a moist
chamber, isolations onto artificial nutrient media, and identification
of fungi or bacteria to genus. Viral inclusion analysis and measurement
of soil pH and total soluble salts will be performed if necessary. Control
recommendations are included.
Specialized Identification Services
Bacterial identifications
Identification of purified bacterial cultures = $25.00
This service identifies purified plant related bacterial cultures using
Biolog. This method uses a microtitre plate filled with different carbon
sources and identifies bacteria according to their metabolic profile;
ID will be to species when possible.
Isolation for and identification of Agrobacterium species.
= $50.00 per sample. This procedure also checks for the bacterium Rhodococcus at the same time. A sample consists of one or more plants of the same
species and cultivar with the problem. Plants of different species or
of different cultivars are considered separate samples.
Viral identifications
Detection of virus particles using electron microscopy
= $20.00 per sample. This service is for those who think their plant
tissue is infected with a virus and ask for us to look for viruses.
This method only works for large, rod-shaped viruses, but is useful
for viruses such as potyviruses and tomato mosaic virus in leafy tissue.
The procedure is a leaf dip.
Virus identification
via ELISA
These fees are for those plant samples that are submitted specifically with a request to test for viruses. The cost of virus testing is based on the number of samples submitted and the number of viruses for which the samples are to be tested.
$40 for the first sample. Bulk samples have a discounted rate: -
2 - 4 additional samples = $15.00 each
5 - 24 additional samples = $10.00 each
25 + additional samples = $7.00 each
.
Virus testing done by an outside company = Cost of testing
+ postage
It is occasionally necessary to send a sample out to a third part for
testing. The fees associated with doing so are dependent on the fees
charged by the testing service. That fee is passed along to our client
without any additional charge.
Seed assays
Seed tests for blind seed or stripe smut = $30.00/ seed
sample.
Seed tests for Kabatiella and Phoma (clover seed); or Ascochyta (pea)
= $50/seed sample.
Water assays
Testing water for the presence of Phytophthora or Pythium = $40 for the first sample, and $15 for each additional sample. Identification
of the organisms obtained will be to genus only. In some cases Phytophthora species may be identified to species. Call first for instructions on
how to sample and how to ship samples.
The Plant Clinic requires 3 days notice for this service so we can have the necessary materials prepared and ready, so please call in advance. We also must have the water 24h after it has been sampled.
Soil assays
Assaying field soil for the presence of Verticillium = $20.00/soil sample.
This service analyzes the soil samples for propagules of the fungus
Verticillium dahliae. We suggest a minimum of 5 samples per acre in
order to get a reasonable representation of the field. This test takes a minimum of 4 weeks.
Rush samples
Plant samples to be done on a “rush” basis
= $100.00 per sample
This includes an extremely thorough investigation, with results available
in most cases in 24 hours. This includes evaluation for fungal and other
diseases; no additional fees are assessed for culturing or other methods
needed to reach a diagnosis.
This service is not available at all times. Please call to confirm it is available before submitting a sample.
EM fixing, embedding and staining for phytoplasmas = $110/ sample
Special diagnostics using molecular methods = $100/ sample
Other services
Other services not listed
here may be available. Call for information.
Out of state
samples
ALL SAMPLES received
from out-of-state will be assessed an additional 50% surcharge.
Factors
used to set fees include cost of materials, supplies, clerical support,
and a portion of the labor required to perform the tests. The remainder
of the costs are paid by the OSU Extension Service as part of its
education mission.
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