Tylenchus arcuatus




Rev 11/19/2019

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Tylenchus arcuatus Siddiqi, 1963


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Morphology and Anatomy:

Key to the genera of the family Tylenchidae


Monodelphic, spermatheca not offset from contour of ovary and uterus.

Males present, amphimixis probable.


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

A hooked or curved tail tip is often characteristic of species of Tylenchus.
Tail tip of Tylenchus arcuatus

SEM photomicrograph from Bert and Geraert, 2000.

Refer to subfamily diagnosis (Tylenchinae). 
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Widely in Europe: France, Belgium, The Netherlands, Poland, Hungary (Bert and Geraert, 2000).


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Economic Importance:

Probably fairly small.

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Ectoparasites of plant roots, root hairs, algae, etc. 

 Yeates et al. (1993a) described Tylenchus as plant feeders (algal, lichen (algal or fungal component), or moss feeders that feed by piercing), or hyphal feeders.

Yeates et al. (1993b):  classified Tylenchus spp. as "plant associated", indicating that they were found in the rhizospheres of plants.


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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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Relatively slight, small stylets penetrating only thin cell walls.

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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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Bert, W. and Geraert, E. 2000. Nematode species of the order Tylenchida, new to the Belgian nematofauna with additional morphological data. Belgian Journal of Zoology 130:47-57.

Yeates, G.W., Bongers, T., Goede, R.G.M. de, Freckman, D.W., Georgieva, S.S. (1993a), Feeding habits in soil nematode families and genera - an outline for soil ecologists, Journal of Nematology, 25 (3): 315-331.

Yeates, G.W., Wardle, D.A., Watson, R.N. (1993b), Relationships between nematodes, soil microbial biomass and weed-management strategies in maize and asparagus cropping systems, Soil Biology and Biochemistry, 25, 869-876.

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Copyright © 1999 by Howard Ferris.
Revised: November 19, 2019.