Verutus

 

Contents

 

Rev 02/25/2011

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

      Tylenchida
       Tylenchina
        Tylenchoidea
         Heteroderidae
          Heteroderinae
           Verutus (Esser, 1981)
    Synonyms:
      None.

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Morphology and Anatomy:

.

Females: No cyst stage.  Body saccate, sausage-shaped, or kidney-shaped. 

Cuticle thick, annulated over total body length; D-layer absent; multiple B-layer present; subcrystalline layer present [For information on ultrastructure of the cuticle and definition of its layers, see Shepherd, Clark & Dart (1972) and Baldwin (1983)].  

Vulva submedian, large, with protruberant vulva lips.  

No phasmids.  

Remnant of tail very short to absent.

Eggs not retained in body, but deposited individually, without gelatinous matrix.  

Males: Body not twisted. 

Stylet under 30 µm long.

Lateral field with four lines.

Spicules strong, slightly curved.  

No phasmids.  

Tail short.  

Second-stage juveniles: Lateral field with four lines.

Esophageal glands filling body cavity.  

Tail pointed, with long, hyaline, terminal part. 

Phasmids punctiform, small, devoid of lens-like structure.  

[Luc, Maggenti & Fortuner (1988).]

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Distribution:

 

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Economic Importance:

 

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Feeding:

Nurse cell system is a syncytium.      

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Hosts:

 

For an extensive list of host plant species and their susceptibility to this genus, copy the genus name

Verutus

select Nemabase Genus Search and paste the name in the Genus box

  
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Life Cycle:

 

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Damage:

 

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Management:

 

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References:

Luc, Maggenti & Fortuner, Rev. Nematol. 11:159-176 (1988).]

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Copyright © 1999 by Howard Ferris.
Revised: February 25, 2011.