Pratylenchus floridensis




Rev 06/01/2021

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           Pratylenchus floridensis De Luca, Troccoli, Duncan, Subbotin, Waeyenberge, Moens & Inserra, 2010

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Morphology and Anatomy:



  • Body almost straight.
  • Labial region with two annuli, 2 μm high × 7 μm widee, offset from body by a slight constriction.
  •  Stylet with ellipsoidal knobs.
  • DEGO 2- 2.5 μm posterior to stylet base.
  • Metacorpus oval, 11-13 μm high × 8.5-11 μm in diam.
  • Isthmus slender, encircled by nerve ring in upper part, located just posterior to metacorpus.
  • Pharyngeal gland lobe overlapping intestine ventrally.
  • Lateral fields with four incisures, not areolated.
  • Gonad 144-240 μm or 32-47% of body length; spermatheca small, rounded or oval,  filled with sperm; Post-uterine sac about 1.5 body diam. long.
  • Tail bluntly pointed  or subacute, with smooth terminus.


  • Body similar to female but slightly smaller.
  • Lip region slightly offset, 2 μm high and 5.7 μm broad, with two annuli (second annulus higher than first).
  • Stylet more slender and shorter than in female, with minute, slightly cupped knobs.
  •  Hemizonid just anterior to secretory-excretory pore, hemizonion eight annuli posterior to it.
  • Lateral field with four smooth lines.
  • Testis outstretched, 238 μm long.
  • Tail conoid, with narrowed hyaline tip, 4 μm long.
  • Spicules arcuate, weakly cephalated, gubernaculum simple, slightly arcuate.
  • Caudal alae extend to tail tip.

Ref: De Luca et al., 2010.



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

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Described from Bahia grass (Paspalum notatum) in Florida, USA.


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Economic Importance:


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    Migratory endoparasite.    

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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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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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De Luca, F., Troccoli, A., Duncan, L.W., Subbotin, S.A., Waeyenberge, L., Moens, M. & Inserra, R. 2010. Characterisation of a population of Pratylenchus hippeastri from bromeliads and description of two related new species, P. floridensis n. sp. and P. parafloridensis n. sp., from grasses in Florida. Nematology 12:847-868.

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Copyright 1999 by Howard Ferris.
Revised: June 01, 2021.