While ferrets are not rodents, they are mammals similar in size to rodents and will be affected in a similar manner as rodents. Most likely just one block of the bait could be lethal to a ferret. Because the
Terad3 Blox have not been tested on ferrets there is no way for us to know how attractive the bait would be to them. If you decide to use the Terad3 for rodent control, you would need to put the bait in
tamper resistant bait stations and place the stations in areas that would be inaccessible to ferrets.