Vertical distribution of Pratylenchus spp. in silt loam soil and Pacific Northwest dryland crops
Article
Article Title | Vertical distribution of Pratylenchus spp. in silt loam soil |
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ERA Journal ID | 2647 |
Article Category | Article |
Authors | Smiley, Richard W. (Author), Sheedy, Jason G. (Author) and Easley, Sandra A. (Author) |
Journal Title | Plant Disease: an international journal of applied plant pathology |
Journal Citation | 92 (12), pp. 1662-1668 |
Number of Pages | 7 |
Year | 2008 |
Publisher | American Phytopathological Society |
Place of Publication | St. Paul, MN. United States |
ISSN | 0191-2917 |
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 |
Keywords | chemical fallow; cultivated summer fallow; Hordeum vulgare; mustard; Sinapsis alba; Triticum aestivum; soil surveys; Nematoda |
ANZSRC Field of Research 2020 | 410202. Biosecurity science and invasive species ecology |
410603. Soil biology | |
300409. Crop and pasture protection (incl. pests, diseases and weeds) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Oregon State University, United States |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q261q/vertical-distribution-of-pratylenchus-spp-in-silt-loam-soil-and-pacific-northwest-dryland-crops
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