
While perfumes may help mask body odour and make us smell pleasant, they can also be used to deter insects. For example, mosquitoes are often drawn to humans by the carbon dioxide we exhale and the odours of our sweat, but certain fragrances can block the scent of sweat and make it more difficult for mosquitoes to find us. Similarly, fleas are tiny insects that feed on the blood of mammals and birds, and they can be a nuisance to both pets and humans. Luckily, there are several natural ways to repel and kill fleas, including the use of fragrances that they dislike, such as cedarwood, peppermint, geranium, eucalyptus, and citrus.
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What You'll Learn

Cedarwood oil can kill fleas
While perfume is not mentioned as a method to kill fleas, cedarwood oil is a natural and effective alternative. Cedarwood oil has a strong scent that is pleasant to humans but repellent to fleas. The oil can overwhelm the fleas' highly developed sense of smell, deterring them from staying in your home or on your pets.
Cedarwood oil is a versatile solution to flea problems. It can be used in various forms, such as sprays, shampoos, or diffused in the air. To use cedarwood oil effectively against fleas, it is important to dilute it properly. You can create a DIY flea collar by mixing cedarwood essential oil with a carrier oil, soaking your pet's collar in the mixture, and allowing it to dry before placing it on your pet. Reapply the mixture weekly to maintain its effectiveness. Alternatively, you can spray diluted cedarwood oil solutions on carpets, furniture, pet bedding, and other areas where fleas may be present to keep your home flea-free.
Cedarwood oil not only repels fleas but also kills them through multiple mechanisms. Firstly, it interferes with their pheromone communication, disrupting their ability to reproduce and locate hosts. Secondly, cedarwood oil has desiccant properties, meaning it can dry out and dehydrate fleas, their eggs, and larvae, breaking their life cycle and preventing new infestations. Lastly, cedarwood oil has antimicrobial qualities, helping to soothe irritated skin and reduce the risk of secondary infections from flea bites.
When used correctly, cedarwood oil is generally safe for pets. However, it is important to follow directions and dilute the oil properly. Consult with your veterinarian before use, especially if your pet has sensitive skin or existing health conditions.
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Eucalyptus oil repels and kills fleas
While perfumes are not mentioned in relation to fleas, natural remedies are often sought after to repel and kill these unwanted pests. Eucalyptus oil is one such remedy that can be used to keep fleas at bay.
The use of eucalyptus oil is a natural way to eliminate fleas from your home and your pet's sleeping place. It has an aroma that is not harmful to humans but is disliked by fleas. The oil can be mixed with water and sprayed around the house, on carpets, furniture, and pet bedding. This method can be used all year, but especially during the summer months when fleas are at their peak.
Eucalyptus oil can also be used to make a simple flea repellent carpet powder. Mixing eucalyptus oil with cornstarch and dusting it over carpets can effectively repel fleas. Additionally, the oil can be rubbed into a pet's collar to act as a natural flea collar, providing protection against fleas.
For pet owners, eucalyptus oil can be a safe and effective way to treat fleas on your pets. It can be mixed with a pet shampoo and used to bathe your dog, being careful to avoid the eyes. Alternatively, a few drops of eucalyptus oil can be mixed with other liquids, such as vinegar and lemon juice, and sprayed onto your pet's coat, avoiding sensitive areas. This method is suitable for dogs, horses, and goats but should not be used on cats.
While eucalyptus oil is a natural and effective way to repel and kill fleas, it should be used in conjunction with other flea control methods. Regular vacuuming and washing of pet bedding in hot water are important steps to ensure a flea-free environment.
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Boric acid kills fleas but can be harmful to pets
While perfume itself does not appear to be an effective method for killing fleas, there are a number of natural remedies that can be used to repel and kill fleas, such as cedarwood, peppermint, geranium, and eucalyptus oils.
Boric acid is another option for killing fleas, but it must be handled with care. It is a pesticide and can be harmful to pets if not used properly. Boric acid is a naturally occurring compound derived from the element boron. It is often found in crystal or white powder form and can be an effective tool for killing fleas in both larval and adult stages. It works by causing dehydration and acting as a stomach poison, abrading the exoskeletons of insects.
It is important to note that boric acid should never be applied directly to pets. Instead, it should be sprinkled on carpets, upholstery, and pet bedding, ensuring it penetrates crevices and cracks. It should then be left undisturbed for a few hours before being thoroughly vacuumed up. This process may need to be repeated over several weeks to effectively control fleas.
While boric acid is considered low in toxicity, it can still cause adverse effects if ingested by pets or humans. Symptoms of boric acid ingestion can include nausea, skin rash, vomiting, diarrhea, and seizures. Therefore, it is crucial to follow the directions on EPA-registered boric acid products to ensure the safety of your pets and family.
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Geranium oil can be used to kill fleas on cats
Geranium oil, or rose geranium oil, has been used as a natural way to repel fleas. This essential oil has a beautiful floral scent and is an effective insect repellent and eliminator. Geranium oil can also be used to kill fleas on cats.
Geranium oil is one of the few essential oils that are safe for use with cats. However, it should be heavily diluted, and you should consult your veterinarian before use. Essential oils are potent and can be harmful and potentially toxic to cats, even if they are labelled as safe to use. Cats are unable to metabolize many essential oils, which can lead to serious health problems.
When applying geranium oil topically, use only one or two drops at most on your cat's fur. You can also add a few drops to a shampoo or carrier oil. Make sure to lather the neck first, so fleas can't run up onto the head. Leave the lather on your cat for a few minutes to help kill any persistent fleas, and then be sure to rinse well.
In addition to geranium oil, there are other natural ways to kill fleas on cats. Flea powders based on calcium carbonate or food-grade diatomaceous earth are effective at killing fleas. You can also bathe your cat or spray its fur with water, as fleas will be dislodged from the fur and eventually die.
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$15.99

Nematodes are a safe, natural way to kill fleas outdoors
While some natural scents like cedarwood, peppermint, eucalyptus, and geranium oils can repel fleas, they may not be effective in killing them. If you're looking for a safe and natural way to kill fleas outdoors, nematodes are a great option.
Nematodes are an extremely effective and affordable solution for outdoor flea control. They are completely safe and will not harm beneficial insects like ladybugs, or other garden life such as birds, squirrels, and household pets. Beneficial nematodes will only target the fleas, leaving the rest of your garden ecosystem untouched.
Nematodes are easy to apply and can cover a large area quickly, even faster if you use a hosepipe canister. You can apply them as often as you like, but unless you have a severe flea infestation, applying them every four months should be sufficient to keep your outdoor areas flea-free.
To control flea larvae in the soil and disrupt their life cycle, use the NemAttack Sc (Steinernema carpocapsae) variety of nematodes. For severe flea infestations, you can combine nematodes with repellents like Garlic Barrier AG+ or Essentria G to keep adult fleas from entering the treatment area and laying more eggs.
Nematodes are a safe and natural way to kill fleas outdoors, without causing any harm to the rest of your garden's flora and fauna.
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Frequently asked questions
While perfumes may not necessarily kill fleas, certain fragrances can help deter them.
Some fragrances that can help deter fleas include apple cider vinegar, peppermint oil, eucalyptus oil, and citrus fruits like oranges and lemons.
Yes, there are several natural ways to kill fleas such as using boric acid, diatomaceous earth, or nematodes (microscopic eelworms).
To get rid of fleas, it is important to treat both your pets and your home simultaneously. Vacuuming regularly, using flea pills or collars for pets, and treating carpets and pet bedding with sprays or powders can also be effective.











































