Peppermint. If you've ever been around peppermint, you know it has a strong scent. This plant is great at repelling bugs. Cockroaches as well as aphids, moths, fleas, and beetles avoid this plant.
Cockroaches: Several of these fragrant plants will help discourage cockroaches from entering your home, including chrysanthemums, catnip, peppermint, and lavender. Fleas and bedbugs: These itchy insects hate lemongrass, lavender, citronella plants, catnip, and chrysanthemums.
What smell keeps roaches away? Luckily for us, roaches tend to dislike smells that we enjoy, like – citrus, peppermint, garlic, and coffee. Eucalyptus and tea tree oil, as well as stronger disinfectants like vinegar and bleach are good at keeping roaches away too.
Peppermint oil, cedarwood oil, and cypress oil are essential oils that effectively keep cockroaches at bay. Additionally, these insects hate the smell of crushed bay leaves and steer clear of coffee grounds. If you want to try a natural way to kill them, combine powdered sugar and boric acid.
Roaches are repelled by ground coffee. In fact, putting some ground coffee down in the corners or windowsills of your kitchen can actually help keep them insects away.
Cockroaches have an incredible sense of smell that they use to find food. You can take advantage of this fact by using scents they dislike such as thyme, citrus, basil, mint, and citronella to repel them from your home.
Lavender. Cockroaches hate the smell of lavender, and that is good news for you. If you love to grow lavender in your yard and garden, you are more than halfway to a roach-free home.
Distilled vinegar does not kill or repel roaches, making it completely ineffective. Distilled vinegar will help keep your kitchen clean, giving cockroaches less to snack on. However, roaches can live for months at a time without any food at all, and they will eat almost anything to survive.
In short, houseplants don't typically attract cockroaches. However, if you use leftover food as fertilizer or create high humidity conditions in your houseplants, it can invite cockroaches as they are attracted to food, moisture, and dark cracks where they can lay eggs.
Hedge apples may help keep cockroaches out of your house. While the oil in the fruit isn't strong enough to actually kill the insects or keep them away from a very large area, the fruit provides a natural way to keep small areas cockroach-free and may help keep the roaches from entering your house.
Not only is peppermint oil a natural cockroach repellent—it's also toxic to roaches (and for the record, to bed bugs, too). The same Auburn University study found that mint oil killed both German and American cockroaches when they came into contact with it for an extended period.
Does Cinnamon repel cockroaches? No, cinnamon doesn't repel cockroaches. But there're are other essential oils or spices that can work against cockroaches. You can use bay leaves, garlic, and catnip to reduce some amount of cockroach activity in your home.
This citric fruit might do wonders for your health, but it certainly isn't a friend of the cockroach clan. The smell of lemons repels cockroaches to a great extent, keeping them away from areas that reek of the fruit. Hence, it is advisable to mop floors with water that has a few lemon drops in it.
Pine-Sol and Fabuloso are strong, all-purpose household cleaners. Similar to bleach, these products kill roaches on contact. Some homeowners suggest spraying Pine-Sol around the outside of your house to keep cockroaches away.
Cayenne, Garlic, and Onion Powder
Roaches hate the smell of each of these spices and will avoid any areas with this mixture. Sprinkle any or all of these powders around your home and replace them each month.
The most common places for a roach nest in the house are in kitchens or bathrooms, particularly behind refrigerators, in cracks and crevices, and under furniture. Roaches prefer a warm, humid environment, so these places should be considered first, especially if they are close to a food source and water supply.
Sugars. Cockroaches are primarily attracted to sugar. Sugar used for tea or baking should be sealed tightly, or cockroaches may get into the package. Soda and juice attract cockroaches, because of the high concentration of sugar in them; even a spilled sugary drink that has dried can be smelled.
Use a mixture of one tablespoon cayenne pepper powder, one crushed garlic clove, and one tablespoon of onion paste. Put it all in a spray bottle filled with water, let it sit for an hour before using, and then spray wherever you've seen cockroaches.
The idea behind this home remedy for cockroaches is that roaches cannot stand the scent of the essential oils released by crushed bay leaves. However, the scent produced by bay leaves is not powerful enough to repel cockroaches.
Moisture. Roaches need moisture to survive and this search for water will bring them into even the cleanest of homes. Leaky pipes and faucets are one of the most common attractants for cockroaches and is one of the main reasons you often see them in bathrooms, kitchens, and laundry rooms.
Most of the time, when someone “suddenly” sees a cockroach, it's not quite as sudden as it seems. In other words, they've probably been in the home for a while, and you seeing them is more related to luck than anything else. Maybe you moved whatever they've been hiding under for the last several weeks.