Vol. 30, No. 1 (March 1998)

Articles

• Species Concepts and the Evolutionary Paradigm in Modem Nematology

  Byron J. Adams

  1-21

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• A Phylogenetic Analysis of Heterorhabditis (Nemata: Rhabditidae) Based on Internal Transcribed Spacer 1 DNA Sequence Data

  B. J. Adams, A. M. Burnell, T. O. Powers

  22-39

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• Degradation of Fenamiphos in Agricultural Production Soil

  A. W. Johnson

  40-44

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• Factors Affecting Degradation of Aldicarb and Ethoprop

  Russell L. Jones, Frank A. Norris

  45-55

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• Enhanced Degradation of the Volatile Fumigant-Nematicides 1,3-D and Methyl Bromide in Soil

  L.-T. Ou

  56-64

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• Potential of Foliar, Dip, and Injection Applications of Avermectins for Control of Plant-Parasitic Nematodes

  Richard K. Jansson, Susan Rabatin

  65-75

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• Evidence for a Dosage Effect of the Mi Gene on Partially Virulent Isolates of Meloidogyne javanica

  E. A. Tzortzakakis, D. L. Trudgill, M. S. Phillips

  76-80

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• Population Changes in Heterodera glycines and Its Bacterial Parasite Pasteuria sp. in Naturally Infested Soil

  N. Atibalentja, G. R. Noel, T. F. Liao, G. Z. Gertner

  81-92

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• Pathogenicity of Pratylenchus Penetrans, Heterodera glycines, and Meloidogyne incognita on Soybean Genotypes

  Haddish Melakeberhan

  93-99

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• Effect of Initial Nematode Population Density on the Interaction of Pratylenchus penetrans and Verticillium dahliae on ²Russet Burbank[sub9] Potato

  I. A. M. Saeed, A. E. MacGuidwin, D. I. Rouse

  100-107

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• Type Specimens on Deposit in the United States Department of Agriculture Nematode Collection, Beltsville, Maryland

  Zafar A. Handoo, A. Morgan Golden, Donna M. S. Ellington

  108-158

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