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Pest Information: Summaries & Maps

Wyoming Cooperative Agricultural Pest Survey

Nematode Pests

Wyoming Nematode Survey Information

The Wyoming Nematode Survey is done in several different commodities in order to detect the presence or absence of those parasitic nematodes of concern to the state and to potential export recipients. The Wyoming Nematode Survey is accomplished through a joint effort between USDA APHIS PPQ, the Wyoming Department of Agriculture, and the Wyoming Pest Detection / CAPS Program.

The Wyoming Nematode Survey is conducted in the fall at harvest. Twenty soil core samples are taken throughout the tested field and are mixed together. A sub-sample of about 1 pint of soil is then taken and sent to the University of Nebraska Nematology Lab for analysis. The samples are screened for nematodes, and any that are found are identified to genus. Microscope and DNA identification methods are used.


Select a nematode to access information and maps

  • Artiellia root-knot nematode (Meloidogyne artiellia)
  • Columbia root-knot nematode (Meloidogyne chitwoodi)
  • False Columbia root-knot nematode (Meloidogyne fallax)
  • False root-knot nematode (Nacobbus aberrans)
  • Golden nematode (Globodera rostochiensis)
  • Javanese root-knot nematode (Meloidogyne javanica)
  • Mediterranean cereal cyst nematode (Heterodera latipons)
  • Northern root-knot nematode (Meloidogyne hapla)
  • Peanut root-knot nematode (Meloidogyne arenaria)
  • Pecan root-knot nematode (Meloidogyne partityla)
  • Pine wilt nematode (Bursaphelenchus xylophilus)
  • Potato cyst nematode (Globodera pallida)
  • Potato rot nematode (Ditylenchus destructor)
  • Reniform nematode (Rotylenchus reniformis)
  • Root-knot nematode (Meloidogyne mayaguensis)
  • Southern root-knot nematode (Meloidogyne incognita)
  • Soybean cyst nematode (Heterodera glycines)
  • Stem and bulb nematode (Ditylenchus dipsaci)
  • Stubby root nematode (Paratrichodorus sp.) 


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