Asterocystis radicis De Wild., (1893) Chytridium brassicae Woronin, (1878) Olpidiaster radicis (De Wild.)

Pascher Pleotrachelus brassicae (Woronin) Sahtiy., (1962) Olpidium brassicae is a plant pathogen, it is a fungal obligate parasite.

In 1983, the Alsike, Alberta area's clover (which is a major part of horses' diet) was struck by a fungus epidemic of Olpidium brassicae, previously not seen in Canada.

[1] O. brassicae is the fungal vector for most, if not all, necroviruses.

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