What is the most common flea found in California?

The cat flea is the most common flea found in California due to its adaptability and preference for domestic pets, particularly cats and dogs. This flea species, scientifically known as Ctenocephalides felis, thrives in the warm, dry climate typical of California, making it a prevalent pest in households and among pet owners.

The cat flea not only infests cats but also dogs and can even bite humans, contributing to its success as a widespread pest. Its life cycle allows for rapid reproduction, which can lead to significant infestations if not managed properly.

In contrast, the dog flea, while also common, tends to be less prevalent than the cat flea in many environments, including California. The human flea and sand flea are found in limited circumstances, making them far less common in this region. Thus, recognizing the cat flea's prevalence is crucial for effective pest management and control strategies in California.