|Description:||This image depicts an insecticide bait tube, which was placed in a strategic location inside the habitat of rodents suspected of harboring fleas infected with plague bacteria, Yersinia pestis.|
These bait tubes are used to control flea populations in areas adjacent to human habitation that are habitats to rodents known to carry flea plague vectors. Rodents are attracted to, and enter the bait tube to feed upon the grain placed inside. Upon entering, and exiting the tube, they come in to contact with the tube walls, which have been coated with a flea insecticide consisting of 0.5% permethrin liquid or 5% Sevin. These insecticides will kill most fleas, but has a very low toxicity for mammals.