Synchytrium is a genus of parasitic fungi that affects plants, causing crop damage and yield loss. There are several synonyms for the word synchytrium, including chytridium, phycomyces, protomyces, and rhizidium. These terms are used interchangeably to refer to the same fungal genus that infects plants. However, the specific species within the Synchytrium genus vary and may have different effects on different plant hosts. Synchytrium-like organisms (SLOs) are also closely related to the Synchytrium genus and share similar characteristics, making them difficult to distinguish from one another. Effective control measures are needed to manage synchytrium and protect crops from its devastating effects.