Baking Soda
A concoction of baking soda and sugar is an effective way to control the multiplication of these pests. Sugar acts as bait to attract cockroaches and the baking soda will kill them. You just need to identify their hideouts and sprinkle this mixture in those corners.
Roach Repellents
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.
Studies have found a boric acid and sugar combination to be a very effective killer of roaches, but more readily available is Borax mixed with sugar, which also gets the job done. Simply mix three parts Borax to one part sugar for bait, and be sure to keep your pets out of the vicinity.
Boric acid can quickly kick a roach infestation to the curb. It's extremely toxic and can kill multiple generations of roaches. Mix a combination of equal parts of boric acid, sugar and water to make a dough. Roll that dough into balls or cylinders and place them where roaches will find them.
White vinegar is often recommended as a natural way to get rid of roaches. Unfortunately, it doesn't actually kill these problem insects. It's more of a cleaning tool than anything else, and it won't actually help eliminate your roach problem.
Citrus. You may love the smell of fresh citrus, but cockroaches hate the scent. That means you can use citrus scented cleaners in your kitchen and bathroom to chase any lingering roaches away. You can also keep a few citrus peels around your home in strategic places.
Boric acid is a powerful natural home remedy for getting rid of roaches overnight. Mix equal amounts of boric acid, flour, and sugar until it becomes a dough-like consistency. Place small pieces where the roaches can feed on them.
While cockroaches aren't picky, there are some things they will try to avoid. For example, certain ingredients like cayenne pepper and lemon juice have been shown to repel roaches. They also avoid bay leaves, coffee grounds, and cucumber slices. Cockroaches also do not consume non-organic items like metal or plastic.
Diatomaceous earth is a natural way to deal with cockroach. It is available in fine powder form that sticks to roaches body and kill them by dehydration process. Diatomaceous eath is also very effective in killing the roach eggs. It is best method to use in fine areas, as DE fine powder can reach inside the cracks.
Cayenne, Garlic, and Onion Powder
Try heading over to your spice rack to concoct the perfect mixture to ward off the roaches! Walk around your home and sprinkle all cockroach-prone areas with this spice mixture. Cockroaches can't stand the smell of these spices and will avoid all areas sprinkled with them.
Sprinkle the diatomaceous earth around areas where roaches travel and frequent. The sharp particles of diatomaceous earth damage the waxy, protective exoskeleton of the roach, causing it to dehydrate and die, typically within 48 hours of contact.
Baking soda can kill roaches, but in order to do so the roaches have to eat the baking soda mixture, and once they consume water the baking soda reacts with the water creating gas in their stomachs, which kills them.
Keep Your Home Clean: Cockroaches won't be quick to leave if they can find something to eat. Clean up crumbs and spills. Store food in airtight containers. Keep your trash covered and remove it daily.
If you see a cockroach or three, you're likely have hundreds—or thousands—living in a nearby nest. But if you act fast before the population has taken hold, you may be able get rid of cockroaches within a week to ten days. And most of them will be gone in a day or two.
Roaches come into your home in search of three things: food, shelter, and water. They have also developed the ability to use even the smallest of openings as an entryway into your house. They can come in through cracks in the exterior walls, dryer vents, or even the gaps between walls and floors.
Lemon contains limonene, which does in fact repel cockroaches.
Eucalyptus oil has a strong scent that seems to have some success in repelling roaches. You can dilute it with water and spray areas you think cockroaches might have nested.
Taking a deep drink of household bleach would kill anything, roaches included. But the same strong odor that keeps people from taking a swig of bleach repels roaches as well. So though it could work, in reality, it will not. It is very difficult to kill an entire roach infestation yourself.
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.
Mix baking soda with sugar to make a killer combination
A concoction of baking soda and sugar is an effective cockroach killer and controls the multiplication of these pests.
Soap and Water
Just like the fabric softener solution, mixing soap with water can kill roaches on contact.
'Salt doesn't kill cockroaches!
That's right, it doesn't. It repels them.