Temporal Changes in the Vertical Distribution of Pratylenchus penetrans under Raspberry

Authors

  • Thomas A. Forge
  • Robyn DeYoung
  • Thierry C. Vrain

Abstract

Population densities of Pratylenchus penetrans and the biomass of fine roots of raspberry at depths of 0-5, 5-10, 10-20, and 20-30 cm were determined every 2 weeks for 2 years. The vertical distribution of P. penetrans varied from season to season, but the seasonal changes were not similar for the 2 years. In most seasons, the greatest population density was in the 5 to 10-cm-depth interval. Population densities of P. penetrans were not consistently correlated with the vertical distribution of raspberry roots in any season. Key words: diagnosis, nematode, population dynamics, Pratylenchus penetrans, raspberry, root-lesion nematode, sampling, vertical distribution.

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Published

1998-06-15

Issue

Vol. 30, No. 2 (June 1998)

Section

Articles

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