What are fleas?

Fleas are tiny parasites, about the size of a speck of dirt, that feed on the blood of warm-blooded animals. They are dark, reddish-brown insects that have hard bodies. Adult fleas are wingless, have six legs, and two antennae. Their long, powerful back legs allow these pests to jump onto a host or out of danger. Fleas prefer to feed on animals, including our dogs and cats. However, if their animal hosts are not available, they will feed on people.

While these pests are often associated with pet owners, fleas can become a nuisance on any property, whether pets are present or not. The two most common types of fleas living in HAWAII are the dog flea and cat flea.

Are fleas dangerous?

Fleas are unwanted pests. Their bites are itchy and uncomfortable for both people and animals, and constant scratching may lead to secondary infections. Fleas are capable of spreading some pathogens that cause disease. The dog flea spreads flea tapeworm (Dipylidium caninum) to both people and animals. The ability to spread disease and parasites makes fleas not only unwanted pests but dangerous pests.

Another concern with fleas is pets that become heavily infested with these parasites may develop anemia, which will make them very weak and ill.

Why do I have a flea problem?

The year-round warm, tropical climate of Hawaii not only allows people to thrive but fleas as well. Fleas living in Hawaii can become a problem in any outdoor space where pets or wild animals come and go. Parks, playgrounds, campgrounds, dog parks, athletic fields, and our yards are all places fleas live successfully.

Once fleas jump onto you or your pets, they can easily be brought inside where they will continue their life cycle. Another way fleas get into homes is by coming inside on used furniture or rugs.

Fleas are prolific breeders, and if even a few gain access into your home, it can lead to a large scale infestation.