Hirschmanniella spinicaudata		Contents		Rev 05/23/2005
		Classification		Hosts
		Morphology and Anatomy		Life Cycle
Return to Hirschmanniella Menu		Economic Importance		Damage
		Distribution		Management
Return to Pratylenchidae Menu		Feeding		References
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Classification:

      Tylenchida
       Tylenchina
        Tylenchoidea

         Pratylenchidae

          Pratylenchinae

           Hirschmanniella spinicaudata

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Morphology and Anatomy:

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Distribution:

Sher found complexes of several species in collections from rice, including H. spinicaudata and H. belli.  Literature prior to 1968 may deal with mixtures.

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Economic Importance:

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Feeding:

Migratory endoparasite of roots.  Juveniles and adults enter behind the root tip and move in air channels; can also migrate into older roots. 

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Hosts:

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Life Cycle:

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Damage:

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Management:

In West Africa, H. spinicaudata can reduce rice yields by 20%, and can survive the dry season well in root debris; however, if the fields are flooded between crops, causing the roots to decay, hydrogen sulfide is released and H. spinicaudata survives poorly (research by Fortuner in Senegal). 

But flooding may be difficult to achieve as river flow diminishes during the dry season, making water less available.

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References:

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Copyright © 1999 by Howard Ferris.
Revised: May 23, 2005.