Sphaeronema californicum

  

Contents

  

Rev 02/13/2023

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

      Tylenchida
       Tylenchina
        Criconematoidea
         Tylenchuloidea
         Sphaeronematidae


           Sphaeronema californicum Raski and Sher, 1952


    Synonyms:
          Goodeyella (Siddiqi, 1986)
          Tumiota (Siddiqi, 1986)
          Macroposthonia (de Man, 1921)

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Morphology and Anatomy:

 All stages: Excretory pore situated close to level of nerve ring. 

Female: Globose. 

Vulva appearing as terminal, and anus as dorsal. 

Uterine wall thickened. 

Male: No stylet. 

Spicular sheath present.

 [Ref: Raski & Luc, Rev. Nematol. 10(4):409-444 (1987).] 


  Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
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Distribution:

Tomales Bay, and several other locations in California.

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Economic Importance:

 
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Feeding:
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Hosts:

      Laurel, and others.

For an extensive host range list for this species, click


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Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click If species level data are not available, click for genus level parameters

 

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Damage:

 

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Management:

Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click

 

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References:

 

 

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Copyright © 1999 by Howard Ferris.
Revised: February 13, 2023.