Aorolaimus helicus

Aorolaimus helicus	Contents	Rev 08/27/2024
	Classification	Hosts
	Morphology and Anatomy	Life Cycle
Return to Aorolaimus Menu	Economic Importance	Damage
	Distribution	Management
Return to Hoplolaimidae Menu	Feeding	References
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Classification:

       Tylenchina
        Tylenchoidea
         Hoplolaimidae
          Hoplolaiminae

Aorolaimus helicus Sher, 1963

Type species of the genus

Morphology and Anatomy:

Female:

Body spiral to C-shaped, medium sized.
Lip region slightly offset with five annules and longitudinal striae.
Labial framework and stylet medium sized; stylet knobs rounded
Dorsal esophageal gland opening 5 Âµm from stylet base.
Esophageal glands with three nuclei, overlap intestine dorsally and laterally; intestine symmetrically arranged between the subventral glands.
Two genital branches outstretched, equally developed. Spermathecae round.
Vulva at 60%; Epitygma double
Lateral field with four incisures.
Tail short, rounded, with 10 annules.
Phasmids may be enlarged to scutella; anterior 30% from head end on left side, posterior 83% from head end on right.

Male:

Lip region with 4 annules
Caudal alae enveloping tail
Esophageal structures smaller in males than in females
Phasmids anterior 36% from head end on left side, posterior 84% from head end on right.

[Sher, 1963.]

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

Distribution:

Aorolaimus helicus was found in lsoil around Rosa sp at Agricultural Resaeach Center, Beltsville, Marylandd., USA

Hosts:

Rosa sp.

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

Baujard, P., P. Castillo, M. Doucet, B. Martinu., D. Mountport. 1994. Taxonomie studies on the genus Aorolaimus Sher, 1963 (Nemata : Hoplolaimidae). 1. Bibliographie analysis and tentative key to speeies. Fundam. appl. Nernalol.17:103-115

Baujard, P., P. Castillo, M. Doucet, B. Martinu., D. Mountport. A. Ndiaye. 1991. Variabilite intra- et interspecifique des structures cuticulaires externes dans le genre Aorolaimus (Nemata : Hoplolaimidae). Syst. Parasit., 19: 195-213.

Sher, S.A. 1963. Revision of the Hoplolaiminae (Nematoda) II. Hoplolaimus Daday, 1905. and Aorolaimus n. gen. Nematologica 9:267-295.