Pratylenchus jaehni

Pratylenchus jaehni	Contents	Rev 06/22/2023
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Pratylenchus Menu	Economic Importance	Damage
	Distribution	Management
Return to Pratylenchidae Menu	Feeding	References
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Classification:

        Tylenchina
        Tylenchoidea
         Pratylenchidae
          Pratylenchinae

Pratylenchus jaehni Inserra, Duncan, Troccoli, Dunn, Santos, Kaplan & Vovlas, 2001

Morphology and Anatomy:

Morphologically similar to P. coffeae but reproductively isolated from it in mating tests (Inserra et al., 2001).

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

Distribution:

Described from roots of citrus in the state of Sao Paulo, Brazil.

Pratylenhus jaehni was formerly classified as Pratylenchus coffeae which had three distinct races. Two of the populations reproduced on citrus but not on coffee while the third reproduced on coffee. The race parasitising coffee, it was distinguished as P. jaehni (Duncan et al., 1999; Inserra et al., 2002).

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

iMating experiments showed that P. jaehni is reproductively isolated from P. coffeae. (Inserra et al., 2001).

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Damage:

Pratylenchus jaehni is considered to be as aggressive as Melodogyne incognita on Coffea arabica (Inomoto et al., 2004).

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Management:

Host Plant Resistance, Non-hosts and Crop Rotation alternatives:

For plants reported to have some level of resistance to this species, click

For coffee plantations in Brazil, cover crops have been identified that are poor- or non-hosts to P. jaehni (Bessi and Inomoto, 2022).

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References:

Bessi, R., Inomoto, M.M. 2022. Host status of cover crops for the management of Pratylenchus jaehni on coffee. J. Nematology 54: | DOI: 10.2478/jofnem-2022-0052

Duncan, L. W., Inserra, R. N., Thomas, S. K., Dunn, D., Mustika, I., Frisse, L. M., Mendes, M. L., Morris, K., and Kaplan, D. T. 1999. Molecular and morphological analyses of isolates of Pratylenchus coffeae and closely related species. Nematropica 29:61-81.

Inomoto, M. M., Beluti, D. B., Siqueira, K. M. S., and Kubo, R. K. 2004. Efeito de Pratylenchus coffeae e Meloidogyne incognita no crescimento de cafeeiro ï¿½Catuaï¿½ Vermelhoï¿½. Nematologia Brasileira 28: 143ï¿½147.

Inserra, R. N. ; Duncan, L. W. ; Troccoli, A. ; Dunn, D. ; Santos, J. M. dos ; Kaplan, D.; Vovlas, N. 2001. Pratylenchus jaehni sp. n. from citrus in Brazil and its relationship with P. coffeae and P. loosi (Nematoda: Pratylenchidae). Nematology 3:653-665.