Soil Testing and Plant Diagnostic Services


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Plant Nematology Laboratory

Nematodes Nematodes Nematodes

This laboratory tests soil and plant samples qualitatively and quantitatively for the presence of plant parasitic nematodes. Recommendations are provided for management strategies to reduce the effect of nematodes on plant growth and yield.

Available tests

  • Soybean cyst nematode (SCN) egg count
    $20 per sample
  • Plant parasitic nematode identification
    $30 per sample
  • Soybean cyst nematode modified HG type (race) test:
    $75 per test, in-state
    $125 per test, out-of-state
  • Soybean cyst nematode full HG type (race) test:
    $100 per test, in-state
    $150 per test, out-of-state
  • Quarantine samples
    $30 per sample

Note for HG type testing
For Missouri soybean producers, we recommend a modified HG type test, which includes five indicator lines representing the predominant sources of SCN resistance available in Missouri. A full HG test uses all seven indicator lines of resistance and is available upon request.


Tomato with root knot nematodesDoes your garden have root-knot nematode?
Root-knot nematodes are microscopic worms that can infect vegetable roots causing serious symptoms and producing galls or "knots" on the roots. The nematodes impede the flow of water and nutrients to the plant.


Magnified 100 times and stained to be visible, juvenile soybean cyst nematodes infect a soybean root. The juveniles will form feeding sites and rob nutrients from the plant Magnified 100 times and stained to be visible, juvenile soybean cyst nematodes infect a soybean root. The juveniles will form feeding sites and rob nutrients from the plant.


Unexplained soybean yield losses? SCN could be the culprit
Soybean producers who experienced unexplained yield losses this season should test their fields for soybean cyst nematode this fall, a University of Missouri researcher said.

Relevant MU Extension publications

Updated 4/28/15