Tylenchulus

Tylenchulus	Contents	Rev 11/12/2004
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Tylenchulus Menu	Economic Importance	Damage
	Distribution	Management
Return to Tylenchulidae Menu	Feeding	References

Classification:

      Tylenchida
       Tylenchina
        Criconematoidea
        Tylenchulidae
         Tylenchulinae
          Tylenchulus (Cobb, 1913)

Synonyms:
      None.

Back to Top

Morphology and Anatomy:

All stages: Excretory pore situated very posteriorly (65-85% of body length); pore surrounded by small, irregularly shaped lobes; excretory duct directed forward.

Females: Fixed into the root by anterior part of body. Body slightly crescent-shaped.

Vulva posterior, but not terminal. Postvulval region short, tapering, ventrally curved and bluntly rounded in T. semipenetrans); almost straight, conoid, finely rounded in T. furcus.

Anus obscure or absent (T. semipenetrans).

No uterine cyst.

Males: Stylet degenerate.

No penial tube.

Lateral field with two lines (T. semipenetrans) or two plus two faint inner lines (T. furcus).

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