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Note that the lip region is not offset and has five annules.
Slit-like amphid aperture below lip region.
caudal alae and tail region.
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
Type Locality Pomponio State Beach, San Mateo County, California
Type host: Bulrush, Scirpus robustus Pursh.
D-rated pests in California.
Migratory endoparasite of roots. Juveniles and adults
enter behind the root tip and move in air channels; can also migrate into older
Bulrush (Scirpus robustus)
Males and Females present.
Host Plant Resistance, Non-hosts and Crop Rotation alternatives:
Abdel-Rahman, F. and Maggenti, A.R. 1987. Hirschmanniella pomponiensis
n. sp. (Nemata:Pratylenchidae), parasitic on bulrush, Scirpus robustus
Pursh. Journal of Nematology 19:147-151.Photomicrographs by John Chitambar, CDFA. and Howard Ferris