Hemicriconemoides rosae

 

Contents

 

Rev 11/21/2019

Sheathoid Nematode Classification Hosts
Morphology and Anatomy Life Cycle
Return to Hemicriconemoides Menu Economic Importance Damage
Distribution Management
Return to Criconematidae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology

 

Classification:

      Tylenchida
       Tylenchina
        Criconematoidea
         Criconematidae
          Hemicriconemoidinae

           Hemicriconemoides rosae Rathour, Sharma, Singh & Ganguly, 2003

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Morphology and Anatomy:

  • Cuticular sheath attached at anterior end and vulva and well separated on tail.
  • Body annuli distinct and rounded, 3-4 μm wide in mid-body region.
  • Lateral field absent and anastomoses lacking.
  • Lip region not set off, rounded with a prominent labial disc and two annuli.
  • Cephalic framework well developed and moderately sclerotised.
  • Stylet long, well developed, ca 51-61 μm long (covering 14-16 sheath annuli). Conus about 86% of stylet length.. Stylet knobs well developed, anchor-shaped, 5-7 μm wide.
  • DEGO 2.0-2.5 μm posterior to stylet base.
  • Procorpus and metacorpus amalgamated. Median bulb with well-developed valve. Isthmus small and narrow followed by distinct basal bulb.
  • Secretory-excretory pore posterior to basal bulb, 22-30 annuli from anterior end.
  • Female gonad monodelphic, prodelphic, outstretched with oocytes arranged in a single row.
  • Vagina distinct, straight to sigmoid, anteriorly directed.
  • Vulva posterior, located 7-9 annuli from terminus and at about 90-93% of body length, distinct slit-like,without vulval flap but with a prominent membranous sheath.
  • Spermatheca well developed, oblong to ovoid-shaped, without sperm.
  • Anus obscure.
  • Tail conoid, convex dorsally, tapering gradually to a slightly narrower rounded or more pointed tip.
  • Male Not found.

Ref: Khan et al., 2019.

 

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

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Distribution:

Common in sugarcane fields and associated with roses in Uttar Pradesh, India.

 

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Economic Importance:

Abundant in sugarcane fields and rose production systems in Uttar Pradesh, India and, although controlled experiments have not been conducted, economic damage is likely (Khan et al., 2019)

 

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Feeding:

Ectoparasite of plant roots

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Hosts:

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:

Khan, M.R., V. Phani, K. Chauhan, V.S. Somvanshi, R. Pervez and R.K. Walia. 2019. Redescription and molecular characterisation of Hemicriconemoides rosae Rathour, Sharma, Singh & Ganguly, 2003 from rhizosphere of sugarcane in India. Nematology 21:767-778

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Copyright 1999 by Howard Ferris.
Revised: November 21, 2019 .