frontline plus must all pets in household be on it?

[yosemite]

Originally Posted by jcat

I got this from the horse's mouth, meaning an exterminator, when I asked him about the little flags he was putting up on a neighbor's lawn last summer after spraying for ticks. He said that he wouldn't treat his own yard because of his young children and pets.

There are some municipalities in the Toronto area where we are not allowed to spray chemicals on the lawns. Some lawn-care companies have been hit pretty hard because of it. Apparently one of the main reasons is that the poisons are going into the water system with run-off.