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 Charter # 133

 

FLEAS

PHYSICAL CHARACTERISTICS

Fleas are small, wingless, brown to black, blood sucking insects. They do not have wings.

Fleas are flattened literally, and have spines on the body that are aimed backwards. This enables them to move rapidly and efficiently through the body hair of an animal.

They have piercing-sucking mouth parts that are somewhat like a "siphon".

Fleas jumping ability is 7"- 8" vertically and 14"- 16" horizontally.

Fleas have a complete life cycle.

There are about 2,250 species of fleas.

Flea larvae have been observed to burrow only to a maximum depth of 1/2 inch.

Flea larvae will crawl long distances (several inches) to reach cover and escape bright light.

Fleas are able to jump 20 times their own height. The equivalent of a 6 foot man jumping 120 feet.

The adult flea will spend 99% of its life on a host animal.

The most common flea in our service areas is the cat flea.

FEEDING HABITS

Flea larvae stays very near the surface to be close to their food supply-adult fleas feces and other animal derived material.

Flea larvae primary food is feces of the adult flea, but will feed on other materials such as pet dander, flea eggs, injured larvae, and proglottids-the shed body segments of the dog and cat tapeworm..

REPRODUCTION

Fleas have a complete life cycle; egg, larvae, pupae, adult. The time required to complete a cycle depends on temperature, humidity, and the food available to the developing insect.

The female flea can lay 300 to 500 eggs in her lifetime. Flea eggs are about 1/50th of an inch in length.

Flea eggs hatch in 1 - 6 days and fleas can develop from egg to adult in 17 - 21 days.

The female mates only once, she lays her eggs loose on the host animal and must have a blood meal before she can lay fertile eggs.

The adult flea can live up to 20 weeks in the pupa case.

DISEASE CARRIERS

Their chief fame, the ability to transmit disease. Of the 2,237 species, less than a dozen are an urban pest.

Fleas can carry Bubonic Plague and Maurine Typhus. Some fleas, especially those from squirrels in the Sierras, still carry "The Plague."

About 75% of fleas are associated with rodents.


Dog and cats can get tapeworms from the flea. The egg containing proglottids exit the host's body via the anus, These tiny egg packets dry to form what looks like sesame seeds. Flea larvae chew into them, swallowing tapeworm eggs. These eggs hatch in a flea larva and form a cyst within its muscles. Here the tapeworm waits for the larva to metamorphose, and the adult flea to be eaten by the cat or dog during grooming. When the dead flea is digested the tapeworm is released.

MORE FACTS

  • Adult fleas can live for months without food.
  • Eat dried fecal blood (larval stage).
  • Live on their host but eggs can roll off and thereby spread infestation
  • Fleas resting in their cocoons come out in response to vibration (such as vacuum cleaners, people or pets moving about).

TREATMENT

Fleas require a complete 3 step treatment in order to effectively eliminate the entire population.

  1. The entire yard is treated with special attention spent on the areas fleas are likely to occur such as shady vegetation under decks where animals rest.
  2. The interior of the home is treated with a combination of residual materials and Insect Growth Regulators.
  3. Owner is provided with pet treatment material to prevent reinfestation of the animal and home.

Sanitation is important for complete control.

 

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Last modified: 03/18/10