Meloidogyne lopezi




Rev 09/12/2022

Costa Rica Root-knot Nematode; Puntarenas Coffee Root-knot Nematode Classification Hosts
Morphology and Anatomy Life Cycle
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        Meloidogyne lopezi Humphreys-Pereira, Flores-Chavez, Gomez, Salazar, Gomez-Alpizar & Elling, 2014

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Morphology and Anatomy:


  • Body ovoid to saccate; lip region slightly offset; amphid apertures elongate.
  • Stylet knobs oval, sloping posteriorly.
  • Perineal pattern with moderately high arch, rounded to squarish.  Punctations and striae absent in pattern.


  • Morphology typical of genus.
  • Stylet robust, cone longer than shaft


Meloidogyne lopezi is distinguished from other Meloidogyne species by isozyme profiles and mitochondrial DNA analysis (Humphreys-Pereira et al., 2014).

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

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Reported from southern Costa Rica.

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Economic Importance:


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.Type Host: coffee (Coffea arabica cv Catuai)

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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Causes numerous small galls on roots of coffee (Coffea arabica cv Catuai).  Each gall with a single female with egg mass on root surface.

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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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Humphreys-Pereira, D.A., Flores-Chavez, L., Gomez, M., Salazar, L. Gomez-Alpizar, L.E., Elling, A.A. 2014. Meloidogyne lopezi n.sp. (Nematode: Meloidogynidae, a new root-knot nematode. Nematology 16:643-661.

Lopez. R. and Salazar, L. 1989. Melodogyne arabicida sp.n. (Nemata: Heteroderidae) nativo de Costa Rica: un nuevo y severo y patogeno del cafeto. Turrialba 39:313-323.

Subbotin, S.A., Rius, J.E.P. and Castillo, P., 2021. Systematics of Root-Knot Nematodes (Nematoda: Meloidogynidae). Brill. 857p.


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Copyright © 1999 by Howard Ferris.
Revised: September 12, 2022.