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potato cyst nematode

Scientific Name
Globodera rostochiensis
Scientific Author
(Wollenweber)
Taxonomy
(Nematoda: Tylenchida: Heteroderidae: Heteroderinae)

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Diagnostic Notes

Vic DPI Fact Sheet

Female:  body forms a cyst; Prominent cephalic framework and stylet; Anterior neck-like region; swollen body shape - lemon, round, or pyroid shape (about 0.5-0.6 mm diam).

Weak cephalic framework; moderate stylet with small rounded knobs; Metacorpus enlarged and fills neck region; Diovarial, prodelphic; coiled or reflexed; Vulva subterminal; anus terminal.

Posterior region important taxonomically:

vulval cone
vulva position
presence or absence of bullae (blister-like internal projections of the body wall)
fenestra - thinner areas in cuticle - may break down to allow juvenile emergence - bifenestrate, circumfenestrate.

Male: Vermiform, 1-1.5mm length; Sclerotized cephalic framework, rounded head cap; Strong stylet; knobs project forward; Esophagus Tylenchid, overlaps ventro-laterally; Reproductive system monorchic.

Curved spicules; No bursa; Tail bluntly rounded.

Source:

See UC Davis weblink

More Information
Author
Walker, K.
Created
02/08/2006 01:05 AEST
Last Updated
21/10/2011 09:31 AEST
Citation
Walker, K. (2006) potato cyst nematode (Globodera rostochiensis) Updated on 10/21/2011 9:31:26 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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