pectobacterium pectobacterium pectobacterium is a bacterial genus of the family pectobacteriaceae; it used to be a member of the genus erwinia, which was split into three genera: erwinia, pectobacterium, and brenneria. pectobacterium slime flux on a camperdown elm caused by pectobacterium carotovorum scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: enterobacterales family: pectobacteriaceae genus: pectobacteriumhauben et al. 1998 species pectobacterium aroidearum pectobacterium atrosepticum pectobacterium betavasculorum pectobacterium cacticida pectobacterium carnegieana pectobacterium carotovorum pectobacterium cypripedii pectobacterium rhapontici pectobacterium wasabiae species include pectobacterium carotovorum.