These are additional flea species that commonly infest wild rodents of many kinds and which may bite humans when people are active in areas where heavily infested squirrels live. They are capable of harboring and vectoring the plague bacteria and may result in closures of campgrounds and park areas when squirrel populations are high and plague surveillance detects infected fleas on them.
Since this species most often infests wild rodents such as squirrels, chipmunks, and native rats, eliminating these host animals is necessary. Ground squirrels also are common hosts for this flea and in the western U.S. are considered to be a primary reservoir for bubonic plague. Where permitted, fumigation of rodent burrows with aluminum phosphide will kill the host animals as well as all parasites in the burrow. Dusting of burrows with a contact insecticide can also be effective.