[1] It is an endoparasitic nematophagous fungus that attacks nematodes and eelworms[2] and is isolated commonly from field and agricultural soils as well as used as an experimental organism in the laboratory.

[3][5] It is a pathogen of eelworms and nematodes,[5] notable for its distinct sickle-shaped conidia that grow in pierce out through the host body.

[7][8] The two genera can be differentiated morphologically, as members of the genus Tolypocladium produce more complex conidiophores with narrower conidiogenous cells.

[5] The invasive apparatus of this species consists of non-adhesive, crescent-shaped conidia that are ingested by hosts and lodge in the esophagus or gut.

[4] The latter possibly relates to the tendency of this species to occur in dung of cow[4] and sheep[2] where its nematode hosts are abundant.

[1][2][6] This fungus has been investigated as a biocontrol agent of agriculturally important nematodes, most notably those responsible for gastrointestinal infection of grazing animals.