Kim from Compton, Ca writes
Bifen IT is labeled for outside only application for fleas. You will also need to mix in an IGR to break down the reproductive cycle. Bifen kills the adults that come in contact with it, but then you still have the immature fleas growing and then reproducing. It is a constant battle without the IGR. We recommend Nyguard as it will last up to 7 months. Nyguard Plus would be a great choice for indoor flea control. For the most effective control, vacuum before treating and then everyday for the next two weeks, being sure to change the bag or empty the cannister immediately after vacuuming. A second treatment should be applied after 14 days.
Answer last updated on: 06/03/2018
