Hirschmanniella belli

Hirschmanniella belli	Contents	Rev 10/07/2024
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Hirschmanniella Menu	Economic Importance	Damage
	Distribution	Management
Return to Pratylenchidae Menu	Feeding	References
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Classification:

Tylenchina Tylenchoidea
Pratylenchidae
Pratylenchinae
Hirschmanniella belli Sher, 1968

Morphology and Anatomy:

Fortuner and Maggenti (1991) compared California populations of Hirschmanniella belli 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. They concluded that discriminant functions defined by this analysis can be used for practical identification of Hirschmanniella from California.

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

Distribution:

Type hosts and location are grasses and sedges in the Santa Ana River bed in southern California.

Zheng (in Davis as a visiting Chinese scholar in the early 1980s), surveyed 100 rice fields around Northern California and concluded all the Hirschmanniella populations that he found were H. belli. He concluded that populations of H. belli in California were much lower than those of H. oryzae in China. The nematodes identified as H. belli are commonly associated with sedges and common cattail (Typha latifolia) along streams and in wet ditches surrounding rice fields. It should be noted that the Zheng and other studies were based on morphometric and anatomical characters of the nematodes and did not employ molecular techniques.