If you are looking for a quick and effective method for killing fleas in your house, flea spray is the way to go. These insecticidal sprays and foggers will eliminate fleas in all stages of life, including eggs, larvae, cocoons, and adults.
While these flea sprays are effective, you might not want to introduce toxic chemicals in your house. Even if they are considered safe. Before trying insecticidal sprays, you might want to give some natural flea control methods a try. Read our article on natural flea control.
How Flea Sprays Work
Flea sprays all work to kill fleas in homes, but they work in different ways depending on active ingredients that are being used. Here we will cover the two most common types of insecticides that are used in flea sprays for homes. These are pyrethroids and insect growth regulators. Both are considered safe for people and pets.
Neurotoxins are commonly used as insecticides, but can be harmful to humans and pets. Pyrethroids however are completely safe for homes. The two most common that are used for flea sprays are permethrin and pyrethrin. They both work in the same way. These chemicals will target the fleas’ nervous systems, affecting the flow of sodium from nerve cells. They essentially cause the nerves to fire over and over again. The end result is death. While these active ingredients are fatal to insects, they are not toxic to humans and do not easily absorb through skin. These sprays are also safe for dogs, but should be kept away from cats and fish.
Juvenile Hormones (JH)
The other common active ingredients used in flea sprays are juvenile hormones. These both work by stopping the life cycles of fleas, preventing them from going through metamorphosis. They effectively prevent larvae from ever reaching adulthood. After pupating, a larger larva comes out, not an adult. Since this substance targets flea larvae, it can take a while to be effective. This is because you have to wait for the current generation of adults to die in your home. Flea traps can to help kill adults faster. Commonly used juvenile hormones are Nylar(pyriproxyfen) and methoprene. These substances are safe for homes, and have no effect on humans or animals. In fact, they are used as topical treatments for dogs and cats.
How to Use Flea Spray
The great thing about using flea sprays is that they are extremely easy to use. They come in aerosol cans, so all you have to do is push the button. Even though these chemicals are thought to be safe, it is best to avoid as much contact as possible. Remove everything from the floor that you can, and apply the spray when no one else is home. To begin, go to the furthest room and start in the far corner, spraying a light mist over all the carpet. Repeat this process for every room. You might also want to spray other prime flea breeding grounds, such as sofas, pet areas, and underneath rugs.
Best Flea Sprays
Ultracide makes a fantastic flea spray that has gotten loads of positive customer reviews. It uses both Nylar and pyrethrin as active ingredients. The combination of these ingredients will wipe out fleas of all stages of life. The pyrethrin will target the adult fleas, and the Nylar will target the flea larvae. This flea spray will knock out an infestation quickly and efficiently. It will also stop re-infestation for up to seven months. After spraying, you will want to vacuum daily for at least a week.
Zodiac is a well known maker of effective pest control products, especially for fleas. The main ingredients are permethrin and methoprene. This combination of ingredients is similar to Ultracide. Methoprene will prevent larvae from maturing into adults, and permethrin will kill the adult fleas. Again, like ultracide, this spray will protect your home from fleas for up seven months after spraying. One can of Zogger fogger will cover 6000 cubic feet. This spray fogger will also kill a variety of other insects such as ants and roaches.
This flea spray from Adams uses pyriproxyfen (Nylar) and permethrin as the main active ingredients, along with Linalool. Linalool is a botanically derived insecticide, essentially citrus extract. The linalool will make this flea spray smell pleasantly citrusy. Like the other sprays mentioned here, it will kill all four stages of a flea’s life cycle. This is no big surprise, because it has similar ingredients. Adams flea spray will protect your home from fleas and other insects for over 200 days after spraying. It can be used on carpets, rugs, drapes, and sofas.