Population Trends and Vertical Distribution of Plant-Parasitic Nematodes Associated with Vitis labrusca L. in Michigan

Authors

  • G. W. Bird
  • D. C. Ransdell

Abstract

Nematode population trends and vertical distribution were monitored in a southwest Michigan vineyard (Vitis labrusca cv. Concord) from 1976 through 1983. Shallow (20 cm) and deep (90 cm) applications of 1,3-dichloropropene applied at 281 (shallow) plus 658 or 1,122 (deep) liters/ ha provided excellent control of Xiphinema americanum, Criconemella xenoplax, and Meloidogyne hapla. Populations of X. americanum remained below detectable levels for the entire 8-year experimental period where the fumigant was applied. X. americanum and C. xenoplax populations exhibited multiyear cycling in nonfumigated plots. M. hapla was first detected in 1978 and increased in prominence from 1980 through 1982. Criconemella spp. were commonly parasitized by an endoparasitic fungus. Parasitism was monitored and reported as an indication of nematode population quality. Key words: Xiphinema americanum, Criconemella xenoplax, Meloidogyne hapla, spatial distribution, population quality, grapes, dagger nematode, ring nematode, northern root-knot nematode, soil fumigation, peach rosette mosaic virus.

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Published

1985-04-15

Issue

Vol. 17, No. 2 (April 1985)

Section

Articles

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