Use Boric Acid Powder: Have you heard that toothpaste can kill cockroaches? Well, boric acid powder is a substance deadly to cockroaches but low in toxicity to humans that can be found in toothpaste and clothing detergent. These household items can be used to effectively kill cockroaches.
If cockroaches get enough borax on the outside of their bodies, it actually damages their exoskeletons. This causes them to rapidly dehydrate and die; a thick coating of borax will certainly get rid of roaches overnight.
The best way to keep cockroaches away permanently is to make the home less inviting. Make sure to keep the home clean, clean up food messes, take out trash at the end of the day, seal any cracks or gaps around windows, doors and the foundation, and fix any issue that might lead to high moisture content within the home.
Boric acid: Used correctly, boric acid is one of the most effective roach killers.
Mix equal parts baking soda and sugar in a small dish and apply it to kitchen cabinets, baseboards, crevices, water sources, and other places roaches like to hide.
Citronella
Citronella not only works great for repelling mosquitos but also cockroaches. While the candles don't work well against roaches, you can use citronella oil as a deterrent. You can mix it with water and use it as a spray or simply wipe down areas with the diluted mixture.
1. Kill Roaches With Baking Soda and Onions. Let's begin with one of the quickest, easiest, and most “make it right now!” home remedies for roaches – baking soda and onions, both of which you may already have in the fridge. Dice a handful of onion, sprinkle it with deadly baking soda, and voila!
Soapy water: Soapy water is a natural and non-toxic way to kill cockroaches instantly. Mix equal parts water and dish soap in a spray bottle and spray it directly onto the cockroach. The soap will suffocate the insect, killing it instantly.
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.
Home remedies like diatomaceous earth, baking soda, boric acid, citrus, essential oils, and borax can be effective ways to get rid of roaches. If you want to take a more aggressive approach to eliminate roaches, glue traps, bait stations, and liquid roach deterrent concentrates are all excellent options.
So what smell do roaches hate? Oregano, rosemary, mint, eucalyptus, lemongrass and catnip are great herby options. Citrus oils work brilliantly too.
All About Vinegar
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. It can, however, help deter roaches and get rid of germs in the kitchen when used as a cleaning agent.
It's a fact that cockroaches are afraid of humans and other mammals or animals that are bigger than them. They see us as predators and that fear triggers their instinct to scatter away. However, they dislike strong and distinctive scents such as citrus, peppermint, lavender and vinegar.
Spray cypress and peppermint oils under and around your bed.
These essential oils tend to naturally repel roaches. Mix 8 drops of cypress oil, 10 drops of peppermint oil, and 1 cup (240 ml) of water in a spray bottle and then spray this mixture wherever you've seen roaches.
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.
These pests are also quickly adapting to strong pesticides, making them harder to kill with typical chemicals. The infestation won't die overnight, either. It can take around two to three weeks to eliminate all of the roaches in your home.
Once a roach has found and consumed bait, it typically dies within 1-3 days. A substantial reduction in the infestation overall should be apparent within a few weeks. With cockroach baits, it usually is not necessary to empty kitchen cabinets or cover food preparation surfaces before treatment.
Bleach's Effect on Roaches
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.
Create a soapy water solution that you can spray with a bottle. It will only take about 2 – 3 sprays to kill any roaches, as the soapy solution will cover their breathing pores and suffocate them.
'A mixture of water and soap can suffocate and kill cockroaches and is especially effective against German roaches. Mix four tablespoons of dish detergent in a liter of water and spray it where you've noticed activity,' the entomologist says.
If you only have a few cockroaches, this is the way to go. Coat the inside of the jar in petroleum jelly and place a banana peel in the bottom. Place the uncovered jar in a dark place. The scent of the banana peel will draw the cockroaches in but, the inside of the jar will be slippery and not allow them to escape.
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.
Eucalyptus essential oil has a fresh fragrance that, surprisingly, seems to confuse or alarm cockroaches. This stuff is strong and you'll only need to mix a few drops with water and spray it around the cockroaches' hotspots to repel them. Research has also shown that eucalyptus essential oil is toxic to roaches.
Many bugs hate citrus smells and cockroaches are no different. You can use lemon juice and put it in dishes to ward off those pests. You can also take lemon peels and place them around your home where you might think the cockroaches are hiding.
Some suggest crushing bay leaves and placing them in areas where they hide to repel them, Essential Oils - A general idea that cockroaches dislike the smell of essential oils such as peppermint, eucalyptus, lavender, and tea tree as they disrupt and musk their scent trails in food finding.