Understanding the Flea Life Cycle | petMD

Pawsitively Pawsh Dog Salon

By Jennifer Kvamme, DVM

When it comes to eliminating fleas from your pet and from your home, there are some key things to consider. First, it is very important to be familiar with and understand the life cycle of the flea when you are trying to eradicate their presence completely.

There are four stages in the life cycle of a flea: egg, larva, pupa, and adult. Depending on the environmental temperature and humidity levels, the total life cycle will take anywhere from a couple weeks to many months. Optimal conditions for fleas are between 70-85°F and 70 percent humidity.

Eggs

The beginning of the life cycle occurs when an adult female flea lays eggs following a blood meal from the host (e.g., your pet). Blood is necessary for the adult flea to reproduce. These eggs are small, white objects (slightly smaller than a grain of sand) that are laid in the…

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