Vertical distribution of Pratylenchus spp. in silt loam soil and Pacific Northwest dryland crops

Article

Smiley, Richard W., Sheedy, Jason G. and Easley, Sandra A.. 2008. "Vertical distribution of Pratylenchus spp. in silt loam soil and Pacific Northwest dryland crops." Plant Disease: an international journal of applied plant pathology. 92 (12), pp. 1662-1668. https://doi.org/10.1094/PDIS-92-12-1662
Article Title

Vertical distribution of Pratylenchus spp. in silt loam soil
and Pacific Northwest dryland crops

ERA Journal ID2647
Article CategoryArticle
AuthorsSmiley, Richard W. (Author), Sheedy, Jason G. (Author) and Easley, Sandra A. (Author)
Journal TitlePlant Disease: an international journal of applied plant pathology
Journal Citation92 (12), pp. 1662-1668
Number of Pages7
Year2008
PublisherAmerican Phytopathological Society
Place of PublicationSt. Paul, MN. United States
ISSN0191-2917
1943-7692
Digital Object Identifier (DOI)https://doi.org/10.1094/PDIS-92-12-1662
Abstract

Dryland field crops in the Pacific Northwest United States are commonly produced in silt loams infested by the root-lesion nematodes Pratylenchus neglectus and P. thornei. Soils at 30 sites in Oregon were sampled from 0 to 120 cm depth to examine the vertical distribution of these Pratylenchus spp. Both species were distributed through entire soil profiles of all cropping systems. Populations were generally greatest in the surface 30 cm, but sometimes high populations were detected at depths greater than 45 cm. Sampling to 30 cm depth allowed detection of more than 50% of the population in most sites, while sampling to 45 cm depth yielded more than 75% of the population in over 75% of the sites evaluated. Therefore, soil samples should be collected to 30 to 45 cm depth to accurately estimate populations of Pratylenchus spp. in dryland crops produced on silt loams in the Pacific Northwest. Populations of Pratylenchus spp. were found to be related to the most recently planted crop, with populations after barley, after wheat, and during summer fallow being detected in ascending order

Keywordschemical fallow; cultivated summer fallow; Hordeum vulgare; mustard; Sinapsis alba; Triticum aestivum; soil surveys; Nematoda
ANZSRC Field of Research 2020410202. Biosecurity science and invasive species ecology
410603. Soil biology
300409. Crop and pasture protection (incl. pests, diseases and weeds)
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Byline AffiliationsOregon State University, United States
Institution of OriginUniversity of Southern Queensland
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