Jets Pest Control · Flea Guide
Flea control done properly.
A complete, plain-English guide to beating fleas in Ipswich, Logan and Brisbane's western suburbs — how they breed, why they're so stubborn, and exactly how we get rid of them.
Book a treatment · 1300 566 569Fleas, by the numbers
Fleas are one of the most common — and most frustrating — pests faced by households across Ipswich, Logan and Brisbane's western suburbs, especially homes with pets. These tiny, blood-sucking parasites cause real discomfort for pets and people alike, and they are notoriously difficult to eliminate once they take hold. The good news is that with the right understanding and the right approach, flea infestations can be brought under control.
This guide explains what fleas are, a little of their fascinating (and grim) history, their biology and life cycle, the health risks they pose, how a professional treatment works, and exactly what you can do at home to win the battle.
What are fleas?
Fleas are small, wingless insects that feed on the blood of mammals and birds. Despite having no wings, they are extraordinary jumpers — relative to their body size, a flea can leap a distance equivalent to a human clearing a tall building in a single bound. This jumping ability is how they move between hosts and around your home.
The most common species affecting Australian pets and homes are the cat flea (Ctenocephalides felis) and the dog flea (Ctenocephalides canis). The cat flea is by far the most common flea found on both cats and dogs in Australia — so even if you only own a dog, the fleas troubling it are most likely cat fleas. These highly adaptable parasites infest homes, yards and pets, and they thrive in the warm, humid conditions that South East Queensland provides for much of the year.
A newly hatched adult flea is small, dark and aggressive. Before its first blood meal it appears almost black, which is why people sometimes mistakenly call them "ground fleas" or "sand fleas." After feeding, fleas lighten in colour and grow larger. A crucial point to remember: for every adult flea you see on your pet, there may be hundreds more developing out of sight in your carpets, bedding and yard.
A brief history of fleas
Fleas have shadowed humans and animals for tens of millions of years — fossilised fleas have been found preserved in amber dating back well over 100 million years, some of them giants compared to today's species. Far from being a mere nuisance, fleas have shaped human history in dramatic ways.
The Black Death
The most infamous chapter in flea history is the role they played in the bubonic plague. During the 14th century, the "Black Death" swept through Europe, Asia and North Africa, killing an estimated 25 to 50 million people — by some estimates as much as a third to half of Europe's population. The plague bacterium (Yersinia pestis) was spread largely by fleas carried on rats, which then bit humans. Plague pandemics recurred for centuries, including the Great Plague of London in 1665, profoundly altering societies, economies and even the art and literature of the era.
Flea circuses
On a lighter note, fleas became a genuine form of popular entertainment. From the 1800s, "flea circuses" toured Europe and later America, with performing fleas appearing to pull tiny carriages, "dance" and fire miniature cannons. These shows exploited the flea's remarkable strength and jumping power, and remained a curiosity at fairs and sideshows well into the 20th century.
Royalty and everyday life
For most of human history, fleas were simply an accepted part of daily life, troubling kings and commoners alike. The wealthy even fashioned elaborate "flea traps" and "flea furs" in an attempt to lure the pests away from the body. It was only with modern hygiene, vacuum cleaners and effective insecticides in the 20th century that fleas became a controllable problem rather than a constant companion.
Understanding this history is more than trivia — it's a reminder that fleas are remarkably resilient survivors. That resilience is exactly why a thorough, well-planned approach is needed to control them today.
The key to control
The flea life cycle
Like a moth or butterfly, the flea passes through four distinct stages. Understanding this cycle is the single most important key to controlling them.
The four stages
Eggs. After feeding on a host, a female flea is ready to mate and lay eggs roughly 24 hours after hatching. She can lay up to about 500 eggs over her lifetime — around 27 eggs per day — across a life that may span several weeks. Eggs are laid on the pet while it rests, but the smooth white eggs quickly roll off onto carpets, bedding, soil and floor cracks throughout your home and yard.
Larvae. Tiny, blind larvae hatch from the eggs and move away from light, burrowing deep into carpet fibres, cracks in floorboards or into the soil. They feed on organic debris and especially on "flea dirt" — the partly digested blood droppings left by adult fleas. Larvae moult three times before spinning a cocoon.
Pupae. Inside the cocoon, the larva transforms into an adult. The cocoon is sticky and collects dust and debris, camouflaging it almost invisibly into its surroundings. This pupal stage is the flea's armour: the cocoon is highly resistant to insecticides, which simply cannot penetrate it.
Adults. In warm weather, an adult flea may be ready to emerge from the pupa in as little as 7 to 14 days. However — and this is critical — fleas can remain dormant inside the pupa for up to 18 months, waiting for the right conditions. Emergence is triggered by nearby movement, vibration, body heat and carbon dioxide — all signs that a potential host is close by.
Only around 5% of a flea population are adults on your pet at any one time. The other 95% — eggs, larvae and pupae — are hidden in carpets, bedding, furniture, floor cracks and shaded areas of the yard. This is exactly why treating only your pet will never solve the problem. You must treat the pet and the environment.
Why are fleas so difficult to control?
The flea's biology is perfectly designed to frustrate control efforts. The eggs and especially the pupae are resistant to most treatments — insecticides cannot penetrate the protective pupal cocoon. Because pupae can stay dormant for many months and then hatch in waves whenever they sense movement or warmth, you can treat a home thoroughly and still see new fleas emerge for several weeks afterwards. This does not mean the treatment has failed — in fact it is exactly what we expect. Successful flea control is therefore never a single event; it's a combination of professional treatment, ongoing cleaning, pet treatment and a healthy dose of patience.
Signs you have a flea problem
- Pets scratching, biting or grooming themselves excessively, or showing signs of restlessness.
- Small dark insects moving quickly through your pet's fur, especially around the neck, belly and base of the tail.
- "Flea dirt" — tiny black specks like ground pepper on your pet's skin or bedding that turn reddish-brown when wiped with a damp tissue.
- Itchy red bites on humans, often clustered around the ankles and lower legs.
- Fleas jumping onto your legs as you walk across carpet, or when you first move through a room in the morning.
- Hair loss, scabs or red, irritated skin on pets, particularly along the back and tail base.
Health risks associated with fleas
Fleas are far more than an itchy annoyance — they pose genuine health risks to both pets and people. Their bites cause itching, irritation and, in many cases, allergic reactions.
Flea Allergy Dermatitis (FAD)
One of the most common skin diseases in pets. Some animals are so sensitive to flea saliva that a single bite triggers intense itching, inflammation, hair loss and secondary skin infections.
Tapeworms
Fleas can carry tapeworm larvae. If a pet — or, rarely, a child — swallows an infected flea while grooming, they can develop a tapeworm infection.
Cat Scratch Disease
Fleas can carry Bartonella bacteria. Cats infected via fleas can pass it to humans through scratches or bites.
Anaemia
In heavy infestations, blood loss can cause anaemia — particularly dangerous for puppies, kittens and small or elderly animals.
Secondary infections
Constant scratching of flea bites can break the skin and lead to bacterial infections in both pets and people.
Other diseases
Historically, and in some regions today, fleas have transmitted serious illnesses such as plague and murine typhus — a reminder that flea control is a genuine health matter.
How Jets Pest Control treats fleas
We provide a thorough, professional flea treatment that targets all life stages of the flea and tackles both indoor and outdoor infestations. Our approach is built around the reality of flea biology — because treating only the visible adults is never enough. The treatment combines synthetic pyrethroid insecticides with an insect growth regulator (IGR) to deliver both rapid knockdown and lasting residual control, all using APVMA-approved products.
Knockdown of active adults
We start by knocking down the adult fleas active at the time of treatment with a fast-acting synthetic pyrethroid. This gives immediate relief from the biting adults and cuts the visible population straight away.
Internal residual + growth regulator
We apply a residual synthetic pyrethroid combined with an insect growth regulator (IGR) across accessible indoor areas. The residual keeps killing adults as they emerge, while the IGR is the key to long-term success — it interrupts the life cycle so eggs and larvae can't develop into breeding adults. Treated areas include:
- Carpets and rugs
- Skirting boards
- Harbourage areas where pets rest
Crack, crevice & void treatment
Sprays can't reach everywhere fleas hide. We treat cracks, crevices, subfloor voids and other concealed harbourage with an insecticidal dust — also a synthetic pyrethroid — for long-lasting control in protected areas that liquid sprays can't effectively penetrate.
External (yard & subfloor) treatment
Outdoors, we apply a synthetic pyrethroid surface spray to shaded resting areas, garden harbourage and accessible subfloor soil — knocking down adults in the environment with residual protection.
External residual control gradually breaks down under UV light and weather, and pupae keep hatching for weeks. For a stubborn infestation, a follow-up treatment around 30 days after the first may be needed to catch the fleas that continue to emerge.
Your role: client responsibilities
Professional treatment works best as a team effort. For lasting results, clients must:
- Treat all pets with an APVMA-approved flea product, ideally at the same time as the property treatment.
- Vacuum carpets, rugs and floors regularly — this removes eggs and larvae and triggers dormant pupae to hatch onto treated surfaces.
- Wash all pet and personal bedding in hot water.
- Keep up non-chemical IPM habits: yard tidying, reducing clutter and ongoing cleaning.
What to expect after treatment
Seeing fleas after treatment is completely normal and expected. Because insecticides can't penetrate the pupal cocoon, fleas keep hatching for several weeks. The difference is that when they land on treated carpet, soil or your treated pet, they pick up the product and die — usually within hours. Those fleas are a sign the treatment is working through the hidden population.
- Keep using the treated areas. Movement and vibration trigger pupae to hatch. Avoiding "flea rooms" only prolongs the problem — walking through them draws the remaining fleas onto treated surfaces, where they die. Don't forget spare rooms, sheds and favourite pet spots.
- Don't remove your pet. Your treated pet acts as a lure. Take it away and you become the only available host — and bites can seem worse.
- Be patient. Even when everything's done correctly, newly hatched fleas may keep appearing for several weeks as the cycle plays out.
- Mind your vacuuming. Follow your technician's advice on when and how to vacuum, and always seal vacuum contents in a bag in an outdoor bin.
- Watch out for vacant homes. Empty rentals and holiday houses build up large numbers of un-hatched pupae. If you've been away, walking through the house and yard (or having someone do so before your return) helps the fleas hatch and die on treated surfaces.
How to prevent flea infestations
Prevention is always easier than cure. To keep fleas from establishing:
- Treat all pets year-round with a quality, APVMA-approved flea product — don't wait until you see fleas.
- Vacuum carpets, rugs, upholstery and floor cracks frequently, especially where pets rest.
- Wash pet bedding regularly in hot water.
- Keep your yard tidy: mow lawns, trim vegetation and reduce shaded, moist harbourage.
- Discourage stray cats, possums and other wildlife from sheltering under the house or in the yard.
- Act early — it's far easier to treat before numbers build up.
- Consider scheduled professional treatments through the warm, humid months.
Pricing & considerations
No warranty. Due to the high risk of re-infestation and the natural resilience of flea eggs and pupae, we don't offer a warranty on flea treatments. Success depends heavily on client actions such as treating pets and regular cleaning.
Resilient stages: Flea eggs and pupae are impervious to chemical treatments. Pupae can remain viable up to around 18 months, emerging once vibration or a potential host is detected.
Treatment longevity: Internal treatments can last for some months thanks to the IGR, but diminish over time, particularly as cleaning chemicals are used on floors. External residual control degrades with UV light and weather. For persistent infestations, a follow-up around 30 days apart may be required.
Frequently asked questions
How do fleas enter homes?
Fleas enter via pets, on clothing, or from infested outdoor areas and visiting wildlife such as possums and stray cats. Once inside, they can quickly establish a population.
Can fleas survive without a host?
Adult fleas need a host but can live several days to weeks without feeding. Eggs, larvae and pupae survive much longer in the environment — pupae in particular can remain dormant for many months.
Are flea bites dangerous?
Flea bites cause itching and irritation. In some cases they may trigger allergic reactions or transmit parasites and diseases such as tapeworms and cat scratch disease.
How long does a flea infestation last?
Without treatment, infestations can persist for months, as fleas keep reproducing and new adults emerge from protected pupae.
What should I do if I see fleas after treatment?
Seeing fleas after treatment is normal as the insecticides work and new adults emerge from pupae. Keep using the treated areas, follow your pet treatment and cleaning protocols, and be patient. A persistent infestation may need a follow-up around 30 days after the first.
How can I prevent flea infestations?
Treat pets regularly, vacuum frequently, wash bedding in hot water, keep your yard tidy and use professional pest control for ongoing protection.
Why is there no warranty for flea treatments?
The high risk of re-infestation and the natural resilience of flea eggs and pupae make warranties impractical. Success relies on client actions such as regular cleaning and treating pets.
How long does external flea treatment last?
External residual control degrades over time due to UV light and weather. For a persistent infestation, a follow-up treatment around 30 days after the first may be needed to catch newly emerged adults.
Can fleas live on humans?
Fleas prefer animal hosts but will readily bite humans. They typically don't live on humans for extended periods because we lack the dense fur that lets them shelter and breed.
What should I do if my pet has fleas?
Treat your pet with an APVMA-approved flea product, wash their bedding, vacuum your home thoroughly, and consider professional pest control to address the wider environment.
Why do I keep seeing fleas even though I've treated my pet?
Because around 95% of the flea population lives in the environment, not on your pet. Treating only the animal leaves the eggs, larvae and pupae in your carpets and yard free to keep hatching. Both the pet and the environment must be treated.
Are "sand fleas" or "ground fleas" a different pest?
Usually not. The small black insects people call sand or ground fleas are most often just newly hatched, unfed cat fleas that haven't yet had a blood meal.
The bottom line
Fleas are persistent, resilient and surprisingly sophisticated pests — they've troubled humans for millions of years and even helped shape the course of history. But armed with an understanding of their life cycle and the right combination of professional treatment, pet care, cleaning and patience, they can absolutely be brought under control. Jets Pest Control provides expert flea treatment tailored to infestations in Ipswich, Logan and Brisbane's western suburbs, targeting every stage of the life cycle for thorough coverage and lasting results.
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Let's get rid of those fleas.
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