Trichodorus viruliferous

  

Contents

  

Rev 10/22/2008

  Classification Hosts
Morphology and Anatomy Life Cycle
Return to Trichodorus Menu Economic Importance Damage
Distribution Management
Return to Trichodoridae Menu Feeding  References
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Classification:

      Adenophorea
       Triplonchida
        Diphtherophorina
         Diphtherophoidea
          Trichodoridae
           Trichodorinae
             Trichodorus viruliferous
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Morphology and Anatomy:

  Nematode is 0.64-0.86 mm long.

Body configuration usually rounded at both ends.

Cuticle tends to swell in water and fixative when nematodes are killed.

Curved odontostyle with dorsal groove.

Females: Diovarial.
Males: Caudal alae absent. Single testis.

Ref. Decraemer, W. 1996.
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Distribution:

Western Europe.

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Economic Importance:

 

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Feeding:

Ectoparasitic; feeds on epidermal cells at and just behind root tips.

Nematodes form colonies and swarm in feeding area.

Feeds in cells by repeated thrusting of the odontostyle within a polysaccharide feeding tube.  Cell contents move along the groove on the dorsal side of the odontostyle.

 

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Hosts:

Potatoes, grass, vines, wheat, and apples.

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Life Cycle:

Life cycle is 45 days on apple.

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Damage:

May be involved in Docking Disorder in some cases.

Nematode vectors Pea Early Browning Virus (PEBV) and Tobacco Rattle Virus (TRV).

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Management:

Docking disorder can be controlled with 1,3-Dichloropropene (1,3-D); Aldicarb also used.

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Copyright © 1999 by Howard Ferris.
Revised: October 22, 2008.