Effect of Tylenchorhynchus nudus on Growth of Kentucky Bluegrass

Authors

  • J. D. Smolik
  • R. B. Malek

Abstract

The effect of Tylenchorhynchus nudus on growth of Kentucky bluegrass was investigated under controlled environmental conditions in both a phytotron and a greenhouse. The nematode significantly reduced weights of clippings, crowns and roots. Pathogenicity was greater in sandy loam soil than in loam and was enhanced by submitting plants to nutrient and/or moisture stresses; soil nutrient level was most critical. The results suggest that T. nudus contributes significantly to summer decline of bluegrass lawns in South Dakota. Key Words: stunt nematode, soil moisture, soil fertility, soil type, Poa pratensis, pathogenicity.

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Published

1973-10-15

Issue

Vol. 5, No. 4 (October 1973)

Section

Articles

License

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