title: Temporal Changes in the Vertical Distribution of Pratylenchus penetrans under Raspberry.
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.
authors.forename: T A
authors.initials: TA
authors.lastname: Forge
authors.forename: R
authors.initials: R
authors.lastname: Deyoung
authors.forename: T C
authors.initials: TC
authors.lastname: Vrain