Hemicriconemoides californianus		Contents		Rev 03/10/2020
Sheathoid Nematode		Classification		Hosts
		Morphology and Anatomy		Life Cycle
Return to Hemicriconemoides Menu		Economic Importance		Damage
		Distribution		Management
Return to Criconematidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

           Hemicriconemoides californianus  Raski and Pinochet, 1975

Morphology and Anatomy:

Hemicriconemoides californianus: A) Female, anterior region; B-C) Female, face view; D) Female, tail in ventral view; E) Male, tail region; F-H) Female, posterior region.  From Pinochet and Raski, 1975
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

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Distribution:

California 

Hemicriconemoides californianus  then reported as H. chitwoodi, was considered as being as common as dagger nematode along north and central coastal vineyards of California by Chang and Raski (1972).  However, Pinochet and Raski (1975) considered this a misidentification and described the species on grapevines in California as H. californianus.

Chang and Raski (1972) reported that their "H. chitwoodi",  from the type host and locality of H. californianus, reproduced on grape, Vitis vinifera 'Thompson Seedless', Vitis rupestris Scheele, 1848, and grapevine hybrid 1613 (Solonis Othello). It did not reproduce on Camellia japonica L., Wisteria or Cycas, leading to the conclusion that it was a biotype different from typical H. chitwoodi.

A population of 10 females from St. Helena, California, reported as H. mangiferae Siddiqi, 1961 by Dasgupta et al. (1969) should be correctly classified as H. californianus.

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Economic Importance:

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Feeding:

Ectoparasitic

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Hosts:

Grape in California. 

Hemicriconemoides californianus, misidentified as H. chitwoodi from the type host and locality of H. californianus, reproduced on grape, Vitis vinifera 'Thompson Seedless', Vitis rupestris Scheele, 1848, and grapevine hybrid 1613 (Solonis Othello). It did not reproduce on Camellia japonica L., Wisteria or Cycas (Pinochet and Rski, 1975)..

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Life Cycle:

Ecophysiological Parameters:

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 Damage:

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Management:

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References:

Chang, H., and D. J. Raski. 1972. Hemicriconemoides chitwoodi on grapevines.Plant Dis. Rep. 56:1028-1030.

Dasgupta, D. R., D. J. Raski, and S. D. van Gundy. 1969. Revision of the genus Hemicriconemoides Chitwood and Birchfield, 1957 (Nematoda: Criconematidae). J. Nematol.
1:126-145.

Pinochet, J. and Raski, D.J. 1975. Four New Species of the Genus Hemicriconemoides (Nematoda: Criconematidae). Journal of Nematology 7:263-270.

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