Pratylenchus hippeastri

Pratylenchus hippeastri	Contents	Rev 05/23/2022
Amaryllis Lesion Nematode	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 hippeastri Inserra, Troccoli, Gozel, Bernard, Dunn & Duncan, 2007

Morphology and Anatomy:

Body slender, usually slightly bent ventrally after gentle heat
Lip region flatten anteriorly with two annuli, and first annulus narrower than the second one. A third lip annulus appears on one side occasionally.
Lateral field with four lines, oblique striae may be present in middle band
Stylet strong, knobs ellipsoidal or slightly concave ..
Excretory pore at the level of or just anterior to the pharyngeal-intestinal valve
Pharyngeal glands overlapping intestine ventrally.
Monodelphic, prodelphic. Oocytes arranged in single row. Spermatheca rectangular not containing sperm.
Vulval lips usually slightly raised in some specimens .
Post-uterine branch with distinct cells occasionally visible in distal portion.
Phasmids located in the distal half of tail.
Tail conoid with bluntly pointed or subhemispherical, smooth terminus. Hyaline portion of tail distinct.
Male not found

Ref: Wang et al., 2016.

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

Distribution:

Described from amaryllis (Hippeastrum spp.) in Florida, USA.. Also reported from China, South Africa, Costa Rica, and from a vineyard in Kern County, California (Handoo et al., 2020).

Hosts:

For an extensive host range list for this species, click

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

Management:

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

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

Handoo, Z.A., Skantar, A.M., Kantor, M.R., Hafez, S.L., Hult, M.N. 2020. Molecular and morphological characterization of the amaryllis lesion nematode, Pratylenchus hippeastri (Inserra et al., 2007), from California. J. Nematology 52: | DOI: 10.21307/jofnem-2020-058

Inserra, R. Troccoli, A. Gozel, U., Bernard, E., Dunn, R. & Duncan, L. 2007. Pratylenchus hippeastri n. sp.(Nematoda: Pratylenchidae) from amaryllis in Florida with notes on P. scribneri and P. hexincisus. Nematology.9:25-42.

Wang, H., Zhuo, K., Liao, J. 2016. Morphological and Molecular Characterization of Pratylenchus hippeastri, A New Record of RootLesion Nematode Associated With Apple in China. Pakistan J. Zool. 48:665-671