Treatment FAQ

what life stage in a flea is not affected by treatment

by Dr. Kaya Jones II Published 2 years ago Updated 2 years ago

After hatching, the immature adult fleas have 2 weeks to find a host. As you can see, about 95% of the flea population is in the invisible egg, larval, and pupal stages. Thus, the immature flea stages provide an ongoing source of adult fleas if left untreated.

Full Answer

Do you need to break the flea life cycle?

If you've had a flea infestation in your home, you'll never want to have one again. To stop repeat infestations, you need to break the flea life cycle once and for all, for a successful attempt at getting rid of fleas. It's a sobering thought that, for every flea on your dog or cat, there are probably at least nine more in your home.

How long do fleas live?

Fleas will live from a few weeks to several months given optimal humidity and temperature (70 percent and 70–85°F). Fleas feed on blood, and the cycle of a flea’s life is closely aligned with that need.

What happens during the pupal stage of flea treatment?

The pupal stage is pretty painful. When fleas are in the pupal stage they are protected by a silken cocoon making them immune to poisons and insecticides. This is the last stage before the flea becomes and adult. Making it even more difficult to remove, the outside of the cocoon is covered in a sticky material.

Do Flea larvae die when they die?

However, larvae are very sensitive to chemicals and are really dependent on the adults. Larvae feed on droppings of adult fleas, so if you manage to minimize the number of adult with various methods, the larvae will quickly die and there will be no resupply of new fleas.

What are the 4 life stages of a flea?

Most fleas have four life stages: egg, larva, pupa (in a cocoon), and adult. This diagram shows the typical lifecycle of fleas. The lifecycle of fleas can be very quick or last many months to years depending on the environmental conditions throughout the life stages.

Why are fleas still alive after treatment?

Once a flea infestation has set up in your home, it can take a while to completely clear it. The cocoon stage in the flea life cycle can remain dormant within your home for many months, so new fleas can continue to emerge for months, even after treatment.

What is the life cycle of a flea without a host?

The flea life cycle goes from egg to larva to pupa before the final adult stage. The process can take anywhere from two to three weeks to several months, depending on the conditions. Adult cat and dog fleas can live up to one year in ideal situations, but only about one to two weeks if no host is present.

How long do fleas live after treatment?

It has a very good residual effect which means that it will continue to work for some time if left undisturbed. Adult fleas will be killed within a few days but the floor should not be vacuumed, swept or washed for at least two weeks after treatment because there will still be eggs which will continue to hatch.

How do I know if the fleas are gone?

You are looking for and fleas that fall or jump off. Once you see one, it is safe to assume there are more. Apply petroleum jelly to the flea comb and brush your dog a second time. If your dog has fleas, they will get stuck to the jelly and you will be able to see them.

Do fleas jump off after treatment?

Flea larvae can remain dormant in your home for months, so new fleas may continue to emerge — even after treatment. These fleas will quickly die after hatching if you've treated your home and kept up with regular flea preventive for your pet, but it can take a while for all the existing fleas to hatch and be killed.

How long can fleas live in carpet without a host?

Without a host, adult fleas live only a few days to 2 weeks. On short-haired cats and dogs fleas survive an average of 8 days; they live longer on long-haired animals. The female flea begins laying eggs within 2 days of her first blood meal.

How do you break the life cycle of a flea?

Fleas cannot fly, but they move by jumping from object to object. It can take up to 3 months to break a total flea life cycle by using monthly flea treatments. For indoor flea control, vacuuming all floors, carpets, baseboards, pet bedding and furniture will help remove adult fleas and eggs.

How long does it take to get rid of fleas?

three to four monthsIn most cases, it takes three to four months to completely get rid of a flea infestation because it takes fleas this long to go through their life stages, according to the American Kennel Club — even more reason to practice preventive measures regularly.

How long does it take for a flea treatment to work?

Fortunately, all flea preventions, both topical and oral, show great speed in controlling flea infestations. Topical preventions have been shown to clear current flea burdens on dogs within 12 to 48 hours, and oral preventions often work within the first 2 to 4 hours.

Why is flea treatment not working?

Incorrectly applying topical flea prevention is the most common cause for its failure to work. Flea prevention is expensive, and you don't want to waste a dose. Topical medication should be applied directly to the skin, not the hair. You must part the hair so that you can apply it to the skin at the base of the neck.

How long does spot on flea treatment take to work?

Your treated pet is a flea-killing machine and any fleas jumping on will be killed within 24 hours with FRONTLINE Plus® and FRONTLINE® Spot On, or within 6 hours with FRONTLINE Tri-Act®.

How many stages of fleas are there?

Fleas Develop in 4 Stages. Fleas have 4 stages in their life cycle. Egg. Larva. Pupa. Adult. The flea population usually is composed of about 40% eggs, 40% larvae, 15 % pupae and only 5% adult fleas. In most of the cases, you will only notice the adult fleas for obvious reasons. Now imagine, if you already see hundreds of fleas in your home, ...

What happens to a flea pupa?

Flea Pupa:after the flea larva is well-developed, it will attach itself to something and will transform into a cocoon. In the pupa stage, the flea will become inactive and will start to morph into an adult flea.

How long do fleas stay in the cocoon?

The larvae will become dark colored after feeding starts. Fleas stay in the larvae state from 5 to 14 days, depending on the amount of food they get. Flea Pupa: after the flea larva is well-developed, it will attach itself to something and will transform into a cocoon.

How long does it take for flea eggs to hatch?

In the right conditions flea eggs can hatch in 2 days. Eggs will hatch best in warm and humid environment. In cold temperatures, below freezing, eggs can survive for months without hatching. Flea Larva ( source – CC BY-SA 4.0) Flea Larvae: after the egg hatches, the flea larvae start crawling and looking for food.

What do flea larvae eat?

Flea Larvae:after the egg hatches, the flea larvae start crawling and looking for food. They feed on blood too. Larvae are not able to penetrate the skin of a pet or human, therefor they rely on the droppings of adult fleas.

When do fleas find a host?

Adult Flea:after the pupa hatches, the adult flea is ready to feed and reproduce. The adult flea will find a host immediate after coming out from the cocoon. If the flea can’t find any food in a few days, it will die.

Can you kill fleas when they hatch?

However, when they hatch into adult fleas, you can easily kill them off with various fleas control methods, until all cocoons are hatched.

What is the third stage of flea life?

Third stage in the life cycle of fleas: The pupal stage. The fleas are one step closer to adulthood. It’s a matter of days or up to a year before they choose to emerge from the cocoon. Temperature and humidity are some of the things that determine how fast that happens.

What is the life cycle of fleas?

Most people will be surprised to know that there are actually more than two thousand different species. What they all have in common is the flea life cycle. The fleas start as eggs, then turns into pupae, followed by larvae, ...

How long can fleas stay in hibernation?

Flea pupae are known to have survived cold winters and extremely hot summers. They can remain in this hibernated stage for up to six months without food. RECOMMENDED: Here are 10 effective products that can help you get rid of fleas quickly.

How do fleas start?

The fleas start as eggs, then turns into pupae, followed by larvae, and lastly they reach the adult flea stage. You will learn all about the life cycle of fleas (which is pretty amazing) and the different flea stages. This knowledge will make it much easier for you to get rid of them and keep them away in the future.

How many fleas can a female flea produce in a month?

If the adult fleas live under perfect conditions, then ten female fleas can produce over a quarter of a million fleas in a month.

What is the fourth stage of fleas?

Fourth and last stage is when the adult flea is born. These nasty things are designed to suck the blood out of animals and people. If that isn’t a good reason to hate them, I don’t know what is. They only have about a week to find some blood, if they want to survive.

How long does it take for a flea to pupate?

They move around and eat the feces (it sounds disgusting, but it’s mostly just dried blood) of the adult fleas. After 5 to 20 days they create cocoons of silk and pupate.

How much of the flea life cycle takes place in the environment?

Around 90% of the flea life cycle takes place in the surrounding environment and not on the pet itself. A flea infestation in the home can be tricky and will take time to get rid of but trying the following tips should help speed things along.

How long does it take for a flea to break?

It can take a month or two to go through all the stages of the flea life cycle. You may still see the odd flea beyond this time, but their numbers will be drastically reduced. However, fully breaking the flea life cycle can take months.

How to prevent fleas from reproducing?

Ensure your pet has an effective parasite product given at regular intervals, as per the product’s instructions. This will kill any fleas that bite your pet and help to prevent further flea reproduction from occurring. Prescription flea treatments tend to be a bit more effective than many over the counter products so speak to one of our vets for advice on what might be best for your pet.

How to get rid of fleas in your home?

Treat your home with veterinary-recommended chemical sprays to kill adult fleas, eggs, and larvae. This will reduce flea numbers in the environment drastically, but be aware that no products will touch the resistant pupal cocoon. Repeat treatments may be needed in some cases, but many products remain effective for 6-12 months. Follow instructions carefully, as these products can be toxic to pets and need applying carefully to be safe.

How many eggs do fleas lay?

Female fleas can lay anywhere up to 50 eggs a day. These eggs are small, oval, and white. They roll and fall off the animal onto the ground where, in the right conditions, they hatch out into larvae within 2 to 12 days.

How long do fleas live in carpets?

If an adult flea becomes separated from its host and source of food, it will only live a few days. However, immature stages of the flea life cycle will live in the carpet for much longer than this. Larvae will feed for a few weeks in carpets before turning into a pupa, which can hide in its dormant state in the environment for several months in some cases.

What to do when your dog has fleas?

Regular using an effective anti-parasite product on your pet is a key when dealing with fleas. Breaks in treatment could be just the time those fleas need to take hold...!

How long does it take for a flea to become an adult?

The larvae will feed on organic debris on the floor or your pet’s fur and hair until they pupate, transforming into an adult flea within a few days.

How do fleas start their life cycle?

1. Flea Eggs. The life cycle for a flea typically starts when an adult female will lay their eggs after feeding on blood from a suitable the host , this is mainly cats or dogs. One half (50%) of the average home’s flea population are flea eggs. Without blood, adult fleas cannot reproduce.

What happens to fleas after they feed?

After feeding, the flea larvae will spin themselves into a cocoon and pupate (transform from an insect -like larva to adult). During this stage they are highly vulnerable if disturbed or exposed to light.

What do flea larvae eat?

Flea larvae emerge being wormlike and when – while also hiding from light. Larvae will eat flea dirt (pre-digested blood) and various organic debris they get in their surrounding. After feeding, the flea larvae will spin themselves into a cocoon and pupate (transform from an insect-like larva to adult).

What do fleas eat?

Fleas feed on blood, and the cycle of a flea’s life is closely aligned with that need. Flea eggs hatch into larvae, which then turn into pupae before emerging as adults. The adults lay eggs as they feed to continue the cycle.

How many eggs can a flea lay in a day?

Without blood, adult fleas cannot reproduce. A female flea can lay up to 40 eggs per day and as many as 2000 in her lifetime! The eggs are sticky, so they will stick to the fur of your pet. This is called “biting” or “bloodsucking”.

Why are flea pupae so hard to spot?

Flea pupae are hard to spot because they’re not moving much, but they don’t flee from light either – which makes them easier targets for you.

How many stages of life do fleas have?

Most fleas have four life stages: egg, larva, pupa (in a cocoon), and adult. This diagram shows the typical lifecycle of fleas. The lifecycle of fleas can be very quick or last many months to years depending on the environmental conditions throughout the life stages.

How long does it take for fleas to emerge from dirt?

Within 5-20 days of feeding on flea dirt, the larvae will spin a cocoon, and enter the pupa stage. The cocoon protects pupa from environmental conditions and insecticides/repellents for several days or weeks until adult fleas are ready to emerge.

How long does it take for fleas to hatch?

Eggs will hatch in one to ten days depending on environmental conditions such as temperature and humidity.

How do fleas find their hosts?

Adult fleas find hosts by detecting body heat, movement, the vibrations caused by movement, and breathing.

What is the last stage of fleas?

The pupal stage is pretty painful. When fleas are in the pupal stage they are protected by a silken cocoon making them immune to poisons and insecticides. This is the last stage before the flea becomes and adult.

How long does a flea larva live?

Flea larva are generally between 3 and 5.2 mm long. They are a semitransparent white color during this stage. The larval stage last from 4 to 18 days. Larva comes from the eggs in the previous stage, generally hatched after they fall off of the host. When they are away from the host they will seek out shaded area such as a crack in the floor or under a bed buried in carpeting.

Why are fleas bad?

Fleas are terrible to begin with because they come in such large numbers infesting your house and biting you, your family, and pets. They can make your day go from great to sour in such a short time. The worst thing about fleas besides their reproduction rate is their life cycle. They have a fairly complex 4 part life cycle each stage of their cycle requiring a different way to kill them. I’m going to list the different stages of the flea life cycle below, ill also give a brief description on how to kill them. If you want a more in depth way to kill fleas click here to learn about flea treatment.

How many eggs do fleas lay?

Fleas can lay between 4-8 eggs after a meal and sometimes up to 50 eggs in a single day. The highest concentration of eggs being laid towards the end of the females life.

What are the stages of fleas?

The life cycle of fleas involves four distinct life stages: egg, larva, pupa, and adult. Recognizing the pests in each of these stages is vital for control:

How to get rid of fleas in the house?

Vacuuming and washing bedding and rugs in hot, soapy water can reduce fleas in the house. Flea larvae, eggs, pupae, or adults hiding in hard-to-reach areas may require professional control.

What do flea larvae look like?

In fur, carpet, or blankets, flea larvae look like c-shaped flecks and can be pale or dark depending on when they last fed. The flea dirt they eat may look like specks of pepper.

What is the color of flea eggs?

Egg - About the size of a grain of sand and whitish in color, flea eggs are very hard to see. After an adult lays its eggs in an animals' fur, they often fall out onto the carpet, pet’s bedding in homes or onto the soil when eggs are located outside.

Can fleas be treated with a vet?

To control a flea infestation, it's important to treat the affected animal as well as the house and yard. Veterinarians can offer flea treatments for pets, but without removing the insects from homes it's easy for animals to become infested again.

How many fleas are there in a house?

It's a sobering thought that, for every flea on your dog or cat, there are probably at least nine more in your home. Adult fleas lay eggs which hatch into larvae and get everywhere—in carpets, between floorboards, in upholstery and in your pet's bedding.

What animals can you treat for fleas?

This includes small mammals such as pet rabbits, hamsters, guinea pigs, etc. Talk to your veterinarian about the best products to use for flea control for all animals in your household.

How to keep fleas out of my house?

Wash all your pet's bedding at a high temperature. Vacuum your carpets and furniture to remove eggs, larvae and pupae and discard the vacuum cleaner bag. By targeting all the hideouts at once, you help break the life cycle and keep your pet and home flea-free.

How long does it take for a flea to hatch?

Large number of eggs (e.g., 40 to 50) laid every day. Fall off pet onto floor and furnishings. Hatch as larvae in as little as 1 to 10 days. 25% to 30% develop into adult fleas.

Do you have to break the flea life cycle?

If you've had a flea infestation in your home, you'll never want to have one again. To stop repeat infestations, you need to break the flea life cycle once and for all, for a successful attempt at getting rid of fleas.

Understanding The Flea Life Cycle – 7 Facts

How to Break The Flea Life Cycle

How to Flea Treat My Cats and Dogs

  • Adult fleas begin searching for food when they emerge from the pupal stage. While fleas are noted for their jumping abilities, they will remain stationery when a suitable host is located. Females begin laying eggs within 48 hours of the first feed, thus beginning the life cycle again. Cold environments cause eggs to perish before hatching. Humidity...
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