Meloidogyne trifoliophila




Rev 09/06/2022

Clover Root-knot Nematode Classification Hosts
Morphology and Anatomy Life Cycle
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        Meloidogyne trifoliophila Bernard & Eisenback, 1997

Detailed information on this species not yet prepared.  Host data may be available.

Review general characteristics of the genus Meloidogyne.

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Morphology and Anatomy:


Perineal pattern is rounded, with long, smooth striae and rounded arch, and without distinct lateral lines or perivulval striae.

Female stylet is 12.6-15.5 μm long, the excretory pore is level with or up to one stylet length posterior to the stylet knobs, and the vulva is subterminal. Posterior terminus is weakly protuberant.

Male lateral field is composed of approximately eight repeatedly broken or forked incisures. The male stylet is 17.0-18.9 μm long, the stylet knobs are rounded and sloping, gradually merging with the shaft, and the head region consists of one large annule.

Second-stage juveniles are 357-400 μm long, with a stylet length of 11.9-13.6 μm and one head annule. The tail tapers to a slender tip.

This species is similar to M. graminicola and M. triticoryzae but differs from them in perineal pattern and lateral field morphology, and numerous morphometric characters.


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

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Meloidogyne trifoliophila was described from white clover collected at Ames Plantation, Fayette County, Tennessee, USA.   Reported also from Australia and New Zealand (Subbotin et al. 2021)


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Economic Importance:

Produces spherical spongy galls on white clover (Trifolium repens) but not on Fescue.  Important parsite of Trifolium and soybean. (Subbotin et al. 2021).

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Type Host: white clover (Trifolium repens).

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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Bernard, E.C. and Eisenback, J.D. 1997. Meloidogyne trifoliophila n. sp. (Nemata: Meloidogynidae), a Parasite of Clover from Tennessee. Journal of Nematology 29:43-54.

Subbotin, S.A., Palomares-Rius, J.E., Castillo, P. 2021. Systematics of Root-knot Nematodes (Nematoda: Meloidoginidae). . Nematology Monograpshs and Perspectives Vol 14. (D.J. Hunt and R.J. Perry, eds)

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Copyright © 1999 by Howard Ferris.
Revised: September 06, 2022.