Aphelenchoides bicaudatus is a nematode parasite of Elaeidobius kamerunicus,[2] Vigna marina,[2] and Agaricus bisporus.

[4] The pupae were found to be severely infested with A. bicaudatus and so were treated until nematode-free before being released.

[4] It occurs commonly as a soil organism in New South Wales.

[3] A. bicaudatus is also found in: Libya,[2] China,[2] India,[2] and Brazil.

[2] A. bicaudatus may be distinguished from other Aphelenchoides and Ditylenchus angustus and D. myceliophagus by some of their α- and β-esterase banding and protein patterns - while some are common between various pairs of those taxa.