Windex is toxic to most pests, especially spiders. Spraying window cleaner directly onto small insects like ants or mosquitoes will kill them within a few moments. For cockroaches, window cleaner can make them temporarily unconscious so that you can squash them.
Listerine and Washing up Liquid. Using listerine (or other mouthwash) with a bit of washing up liquid will help repel the roaches away. Mix equal parts listerine and water and add a few drops of washing up liquid. Give it a good shake in the spray bottle and either spray around the house or directly at the cockroaches.
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.
Soapy Water: Surprisingly, dousing a cockroach in soapy water will suffocate and kill it. Filling a spray bottle with dish soap and water, shaking it, and spraying a roach from above will kill it quickly.
Baking Soda and Onions
Starting from the quickest among all, take out some baking soda and onion to prepare a trap for the six-legged crawling insects. Dice a handful of onion, and sprinkle some baking soda to kill cockroaches. Place it on the hotspot areas or anywhere roaches like to dine.
One popular DIY method is to mix boric acid with equal parts powdered sugar as a lure. Apply as a fine layer under appliances, behind cabinets and along crevices. Roaches ingest the mixture and die within a few hours.
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.
Spraying window cleaner directly onto small insects like ants or mosquitoes will kill them within a few moments. For cockroaches, window cleaner can make them temporarily unconscious so that you can squash them. This works on initial contact, but Windex will not continue to kill bugs after it has dried.
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.
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.
Spray Essential Oils
Research has found that some essential oils—especially rosemary oil—are effective at repelling roaches. Rosemary oil was found to offer a 100% roach mortality rate at the concentration range of 2.5% to 30%. So mix it with water and spray away at your problem areas!
Sugar. Sugar is by far the most attractive substance to a cockroach. They love sugar and can smell it from anywhere. This means you'll want to keep your sugar containers, fruits, and other sweeteners sealed in air-tight containers that are up off the floor.
Mint or eucalyptus - Roaches hate the smell of mint too. You can use this in many different ways. From placing these plants in the corners of your house or using the eucalyptus' essential oil as a spray. Clove oil - This works best with other essential oils like peppermint or citrus.
Cockroach predators include mammals, avians, amphibians and other reptiles. For example, hedgehogs will eat roaches. Joining the roach à la mode dinner party are geckos, skinks and other species of lizards, frogs, turtles, some types of birds and even rats and mice.
That being said, if you only have the occasional cockroach, then Lysol might be enough to take care of your small infestation. Because Lysol has weaking killing power, but Lysol's smell can repel roaches, it might be enough!
The World Health Organization also advises against crushing them, for reasons of hygiene. According to the body, which classes cockroaches as “unhygienic scavengers in human settlements”, squashing them can spread bacteria into the environment that can lead to asthma, allergies and illnesses.
While bleach is ineffective when it comes to killing cockroaches, it does repel them. But, bleach should only be used with extreme caution, as it is toxic when ingested, and has the potential to bleach or damage anything it touches. When it comes to deterring roaches with smells, bleach may not be the best option.
Fabuloso doesn't attract roaches. Instead, it consists of multiple acidic components with a strong, floral scent that cockroaches don't like. This makes it an excellent roach repellent and exterminator. Directly spraying this solution on the cockroaches can eventually kill them.
Cockroaches are attracted to the food and shelter that comes with filth. Cleaning your home is the easiest way to keep roaches at bay. You need to be incredibly thorough in this effort—unfortunately, roaches can survive for 2 weeks without water and 3 months without food.
Good old-fashioned soap and water is a safe, reliable, and inexpensive method. 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.
So yes, Dawn soap will kill a roach when used correctly and accurately. However, it won't repel or be passed on from roach to roach the way current pesticides will.
Cockroaches are most likely to be active about four hours after dark and enter a period of immobility just afterwards. This immobility period is similar to what humans would call “sleeping.”
You will find roaches year-round in California. In other states, the warm and moist spring and summer months are the roach's favorite time for foraging and breeding. But, in states like California with wEarth climates, the cockroaches have no off-season.
Cockroaches can go for up to a month without eating. Therefore, don't expect them to bid goodbye in a few weeks after you resolve to subject them to starvation. This period can even be extended if they apply their survival techniques, including cannibalism.