Rev: 12/17/2024
Criconematoidea Criconematidae Discocriconemellinae
Xenocriconemella De Grisse and Loof, 1965
Synonyms:
Small body with large number of annules.
At the anterior end, the first body annule is not anterior to the second but inside it.
Stylet long and flexible
Vulva is closed and vulval lips form a sleeve.
Ref Geraert (2010)
Specimens of this interesting group of nematodes were rarely detected in soil samples, and were usually in low numbers, until the development of sugar flotation and centrifugation extraction techniques (Jenkins, 1964). Those techniques maximize recovery of "wide-bodied", slow-moving nematodes.
Ring nematodes feed ectoparasitically on root tips or along more mature roots. The nematodes are migratory unless soil pore space limits their movement. Adult stages of the larger ring nematode adults appear sedentary or stuck within their pore space as they develop to adult size.
Nematodes exhibit characteristic slow, sluggish movement.
Extraction poor except with sugar/centrifuge - then found frequently.
Brzeski, M., P.A.A. Loof and Y.E. Choi . 2002b. Compendium of the genus Criconemoides Andrassy, 1965 (Nematoda: Criconematidae). Nematology 4:341-360.
Geraert, E. 2010. The Criconematidae of the World: Identification of the Family Criconematidae. Academia Press, Gent. 615p.