Afrina tumefaciens




Rev 07/21/2022

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Morphology and Anatomy Life Cycle
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          Afrina tumefaciens (Cobb, 1932) Brzeski, 1981
Bradley Grass Nematode
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Morphology and Anatomy:


Afrina tumefaciens  

  • Body coiled when heat-killed

  • Basal bulb of esophagus large and irregular shape; slight overlap over intestine

  • Ovary eflexed

  • Male with testis extending almost to esophagus

  • Bursa from 1 body width anterior to cloaca , ending before tail tip.

  • Tail tip with a small projection

Ref: Van den Berg (1985)



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


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Dsecribed from seed galls in lawn grasses in South Africa, especially Bradley grass (Cynodon transvaalensis)

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Economic Importance:

Afrina tumefaciens small ovoid galls on stems, leaves and rarely in flower heads (Barrantes-Infante et al., 2018)


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For an extensive host range list for this species, click

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Life Cycle:

Galls contain as many as 9 adults and numerous eggs and juveniles (Van den Berg, 1985).

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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Afrina tumefaciens small ovoid galls on stems, leaves and rarely in flower heads of lawn grasses (Barrantes-Infante et al., 2018)
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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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Barrantes-Infante, B.L.,Schroeder, B.K., Subbotin, S.A. and Murray, T.D. 2018. Afrina sporoboliae sp. n. (Nematoda: Anguinidae) Associated with Sporobolus cryptandrus from Idaho, United States: Phylogenetic Relationships and Population Structure. Phytopathology 108:768-779.

Brzeski, M. W. 1981. The genera of Anguinidae (Nematoda, Tylenchida). Rev. Nematol. 4:23-34.

Van den Berg, E. 1985.  Notes on the genus Afrina (Brzeski, 1981) Anguinidae: Nematoda) with description of new and known species. Phytophylactica 17:69-79.


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Copyright © 1999 by Howard Ferris.
Revised: July 21, 2022.