Nematophagous Fungus (en.wikipedia.org)

Nematophagous fungi are carnivorous fungi that trap and digest nematodes, using mechanisms such as adhesive nets, constricting loops, toxins, or spore/egg parasitism. The species occur worldwide across many habitats and have evolved this feeding strategy multiple times. Some are being studied as biological control agents against crop-damaging plant-parasitic nematodes, with mixed results in trials depending on the fungal strain and setting.