Effects of Pratylenchus coffeae-Tylenchulus semipenetrans Interactions on Nematode Population Dynamics in Citrus

Authors

  • D. T. Kaplan
  • L. W. Timmer

Abstract

The distributions of Pratylenchus coffeae and Tylenchulus semipenetrans in a central Florida citrus grove were mutually exclusive. In a challenge experiment conducted in the grove, indigenous populations of either species did not prevlude infection by the other species. Inoculation with either T. semipenetrans or P. cofleae tended to reduce the population size of the other nematode species. In greenhouse tests, individual feeder roots were parasitized predominantly by one or the other of the two species. Host response to parasitism in dual infections did not differ from response to single infection by either species. Key words: nematode distribution, infection, parasitism, histology.

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Published

1982-07-15

Issue

Vol. 14, No. 3 (July 1982)

Section

Articles

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