Malisa from Gatesville, Tx writes
How long does it take Bifen IT to kill fleas?
I sprayed yesterday and my dogs are covered again and I too get covered when I walk outside.
Answer:
Bifen ITÂ is not a contact kill product, it is a residual product that can take a few day to start killing the fleas or other insects that you are treating for. Â You need to give the product time to do what its designed for. Â If the infestation of fleas is extensive then you may treat again after 7-14 days. Â It is recommened to treat your dog, as well as treat the inside of your home. Â Continue to clean, wash and vaccum daily till the infestation is under control. Please take a few moments to review our Flea Treatment Guide for more information.
Answer last updated on: 06/14/2017
