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Vertical and horizontal distribution of and soil sampling for root lesion nematodes (Pratylenchus neglectus and R thornei) in South Australia

Vertical and horizontal distribution of and soil sampling for root lesion nematodes (Pratylenchus... Vertical and horizontal distribution of and best sampling techniques for Pratylenchus neglectus and P thornei were studied in several different soil types in South Australia. Nematodes were recovered to depths of 60 cm in shallower soils and up to 90 cm in deeper clays. Between 47% and 84% of the population of Pratylenchus spp. was recovered from the top 0–10 cm, and 64–94% of the population from the top 20 cm. Higher proportions of Pratylenchus were found in the top 10 cm of sands and sandy loams than clay soil types. More Pratylenchus spp. were recovered within plant rows of the previous erop than between rows at only one of the five sites assessed. In dry soil, recovery of Pratylenchus spp. was higher using an undisturbed soil core with water added than in samples collected with an auger, In wet soil, both techniques gave similar results. Based on this information, to obtain maximum recovery of nematodes it is recommended to add water to dry soil before sampling for Pratylenchus spp. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Australasian Plant Pathology Springer Journals

Vertical and horizontal distribution of and soil sampling for root lesion nematodes (Pratylenchus neglectus and R thornei) in South Australia

Taylor, S.; Evans, M.
Australasian Plant Pathology , Volume 27 (2) – Jan 27, 2011
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References (34)

Publisher
Springer Journals
Copyright
Copyright © 1998 by Australasian Plant Pathology Society
Subject
Life Sciences; Plant Pathology; Plant Sciences; Agriculture; Entomology; Ecology
ISSN
0815-3191
eISSN
1448-6032
DOI
10.1071/AP98011
Publisher site
See Article on Publisher Site

Abstract

Vertical and horizontal distribution of and best sampling techniques for Pratylenchus neglectus and P thornei were studied in several different soil types in South Australia. Nematodes were recovered to depths of 60 cm in shallower soils and up to 90 cm in deeper clays. Between 47% and 84% of the population of Pratylenchus spp. was recovered from the top 0–10 cm, and 64–94% of the population from the top 20 cm. Higher proportions of Pratylenchus were found in the top 10 cm of sands and sandy loams than clay soil types. More Pratylenchus spp. were recovered within plant rows of the previous erop than between rows at only one of the five sites assessed. In dry soil, recovery of Pratylenchus spp. was higher using an undisturbed soil core with water added than in samples collected with an auger, In wet soil, both techniques gave similar results. Based on this information, to obtain maximum recovery of nematodes it is recommended to add water to dry soil before sampling for Pratylenchus spp.

Journal

Australasian Plant Pathology – Springer Journals

Published: Jan 27, 2011

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