What is the most effective non-chemical method for controlling fleas?

Vacuuming and removing items on the floor is the most effective non-chemical method for controlling fleas because it addresses multiple aspects of the flea lifecycle. This method helps in physically removing adult fleas, larvae, and eggs from the environment, which is crucial in breaking the reproductive cycle of fleas.

By vacuuming, you not only eliminate visible fleas but also disrupt their habitat by collecting debris and organic materials where they thrive. It’s important to regularly vacuum carpets, rugs, upholstery, and other areas where fleas may hide. Additionally, vacuum bags or canisters should be disposed of outside to prevent re-infestation.

The other options, while they may have some limited effectiveness, do not provide as comprehensive a solution. Insect repellents may temporarily ward off fleas but do not remove them from the home. Using traps can catch some fleas, but it does not significantly impact the population as effectively as thorough vacuuming does. Applying insecticide outdoors can help manage the flea population outside, but for an indoor infestation, it is crucial to remove fleas and their eggs directly from the living environment.