Parasitism of Nonhost Cultivars by Ditylenchus dipsaci

Authors

  • G. D. Griffin

Abstract

The alfalfa race of Ditylenchus dipsaci parasitized and caused characteristic symptoms on nonhost seedlings of sweet clover, onion, tomato, sugarbeet, and wheat in controlled growth-chamber studies. Although the nematode was unable to reproduce on any of the cultivars, it caused plant mortality ranging from 20% on sugarbeet and tomato to 100% on onion. Key Words: alfalfa stem nematode, onion, sweet clover, tomato, sugarbeet, wheat, temperature, mortality, reproduction.

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Published

1975-07-15

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Section

Articles