If you want to rid your home of fleas completely, you need to destroy all life stages of the fleas in your home and on your pet. (baltimorepetshoppe.com)
As the immature stages of fleas begin to mature, they too will be killed as soon as they jump on to the pet. (baldwinanimalhospital.com)
This helps to remove the various stages of the flea life cycle as well as flea dirt and other food for flea larvae. (thesprucepets.com)