''Lagenidium'' is a genus of

Oomycota Oomycota forms a distinct phylogenetic lineage of fungus-like eukaryotic microorganisms, called oomycetes (). They are filamentous and heterotrophic, and can reproduce both sexually and asexually. Sexual reproduction of an oospore is the result ...

. It includes the now deregistered biological control agent '' Lagenidium giganteum''.US Environmental Protection Agency, Product Cancellation Order for Certain Pesticide Registrations. Federal Register /Vol. 76, No. 188 /Wednesday, September 28, 2011
/ref> Certain species can cause

lagenidiosis Lagenidiosis is a type of infectious disease. The best known species of '' Lagenidium'' is ''Lagenidium giganteum'', a parasite of ''mosquito'' larvae used in biological control of mosquitoes. The disease lagenidiosis in dogs is caused by a new spe ...

References

Water mould genera Water moulds {{watermould-stub