Return to Hirschmanniella Menu
Maggenti (1991) compared California populations of Hirschmanniella
belli i) to paratypes of this species, ii) to
topotypes of H. oryzae, and iii) to other populations of
the same genus from other parts of the world. Seven characters
were selected that were not affected by artifacts, and that
differentiated all California specimens (including paratypes of H.
belli) from topotypes of H. oryzae. The
discriminant functions defined by this analysis can be used for
practical identification of Hirschmanniella from
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:
Type hosts and location are grasses and sedges in the Santa Ana River
bed in southern California.
Zheng surveyed 100 rice fields around Northern California and
concluded all populations were H. belli.
Much lower populations of H. belli were observed in California than
with H. oryzae in China.
Nematode is commonly associated with sedges between crops,
especially in wet ditches, and with common cattail (Typha latifolia) along streams and ditches.
in California Nematode Pest Rating System.
Migratory endoparasite of roots. Juveniles and adults
enter behind the root tip and move in air channels; can also migrate into older
Males are infrequently found.
No known examples of attempts to manage H.
belli. Populations probably regulated by seasonal dry
Host Plant Resistance, Non-hosts and Crop Rotation alternatives:
Fortuner, R; Maggenti, A R. 1991. A statistical
approach to the objective differentiation of Hirschmanniella oryzae from Hirschmanniella
belli (Nemata: Pratylenchidae). Revue de Nematologie, 14:165-180