Pratylenchus crenatus




Rev 06/01/2021

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           Pratylenchus crenatus Loof, 1960

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Morphology and Anatomy:


Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

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California, Canada, Europe, Japan

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Economic Importance:

D-rated pest in California Nematode Pest Rating System.

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    Migratory endoparasite.     
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Population levels of P. crenatus increased at different rates on wheat, maize, buckwheat, common rape, common persicaria, common agrimony, horseweed and soaproot. The best host was horseweed and the worst was wheat.  Body size parameters of the nematode differed among hosts (Urek, 1999).

Turf (golf courses) in Ontario, Canada. Also from fruit trees in Canada (Yu, 2008).

Tobacco in Japan.


For an extensive host range list for this species, click

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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters


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Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click


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Klinkenberg, C.H. 1963. Observations On the Feeding Habits of Rotylenchus uniformis, Pratylenchus crenatus, P. penetrans, Tylenchorhynchus dubius and Hemicycliophora similis. Nematologica 9:502-506.

Urek, G. 1999.  The effect of host plants on the biopotential and the morphometric characteristics of Pratylenchus crenatus Loof, 1960. Acta Phytopathologica et Entomologica Hungarica. 34: 253-262.

Yu, Q. 2008.  Species of Pratylenchus (Nematoda: Pratylenchidae) in Canada: description, distribution, and identification. Canadian J. Plant Pathology 30:477-485.

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Copyright © 1999 by Howard Ferris.
Revised: June 01, 2021.