Stem and bulb nematode
Onion Bulb Stem Nematode
Onion bulbs showing nematode damage
Scientific Classification
Kingdom: Animalia
Phylum: Nematoda
Class: Tylenchoidea
Subclass: Diplogasteria
Order: Tylenchida
Superfamily: Tylenchoidea
Family: Anguinidae
Subfamily: Anguininae
Genus: Ditylenchus
Species: Ditylenchus dipsaci
Stem and bulb nematode

Bud and stem nematode
Beet stem nematode
Bulb nematode
Clover stem nematode
Onion stem nematode
Phlox stem nematode
Stem nematode
Teasel nematode
Tulip root nematode

Anguillula dipsaci Kuhn, (1857)

Stem and bulb nematode (Ditylenchus dipsaci) is a plant pathogenic nematode.

Identifying FeaturesEdit

Bulbs and stems become distorted and swollen. Young plants die, older plants produce soft bulbs that cannot be stored.[1]


None. Destroy infected plants by burning.


Do not grow onions, peas, beans or strawberries on the same land for 3 years.



  1. Hessayon, D.G. (2009). The Vegetable & Herb Expert. Transworld Publishers, London. p. 74. ISBN 9780903505468
This page uses Creative Commons Licensed content from Wikipedia (view authors).

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.