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.
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.
Cockroaches do not avoid light because it harms them. In fact, it's only because they are unable to hide or evade predators when they are in open sight. For this reason, they will not dare to venture out when the light has been turned on in your home.
Are Cockroaches Attracted to Light? No, cockroaches dislike any form of light, whether natural or artificial, which may be why you see them scuttling frantically toward a hiding spot when you flip on the bathroom or basement lights. Cockroaches are nocturnal, so it is unusual to see them during the daytime.
Boric acid Some people find this to be the best option to kill roaches. Boric acid can work too, the only downside is that sometimes roaches will go away as soon as they smell boric acid.
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.
Cockroach Bites
They have been recorded to eat human flesh of both the living and the dead, although they are more likely to take a bite of fingernails, eyelashes, feet and hands. The bites may cause irritation, lesions and swelling. Some have suffered from minor wound infections.
Dusts – A few insecticides used for cockroach control are applied as dusts or powders. Most familiar to householders are boric acid and diatomaceous earth. For controlling cockroaches, boric acid tends to be more effective. Roaches succumb to boric acid after crawling over treated surfaces.
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.
You don't have to call an exterminator immediately, but take proactive steps to diagnose the scale of the issue: search for possible hiding areas and look for any signs of infestation (roach droppings, eggs, skin casks). Once you see 2 roaches, you have an infestation—contact an exterminator as soon as possible.
Cockroaches are blessed with an amazing sense of smell. This is what they use when seeking food and mate but at the same time, this is also their weakness. A cockroach's sense of smell can be used to get rid of them. There are smells they can not stand so we can use this to shoo them away from our homes.
Cockroach Eliminating Method: Baking Soda and Sugar
The method: Mix equal parts baking soda and sugar in a shallow bowl and place near the site of your last cockroach sighting. The idea is that the sugar attracts the cockroaches and the baking soda will kill them.
Beetle larvae, silverfish, and even other roaches make up the majority of what eats cockroaches inside the house.
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. Laundry Detergent – Dilute a few drops of laundry detergent or dish soap in water and use the mixture as a spray.
Sweep your floors. Make sure all traces of food and other debris are swept off your floors. This is especially important in the kitchen where food and crumbs commonly fall. After sweeping, mop your floors with a disinfectant cleaner and boiling hot water to kill germs and keep roaches at bay.
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.
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.
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.
Lemon contains limonene, which does in fact repel cockroaches.
And it's not just artificial light that cockroaches dislike. They're not fond of natural light either. Because of this, you're unlikely to see them during the daytime. If you do notice one during the day, it may be because the roach got crowded out of its home or was forced out of hiding due to a lack of food.
Cockroaches are attracted to food and water sources. Dirty dishes, crumbs, food spills, leftovers, garbage, and pet food will all draw cockroaches in. Roaches are excellent at scuttling into and over tiny spaces, especially holes in pipes, cracks and crevices in your home, and tears in screens.
Cockroaches emerge from their indoor hiding spots at night to seek out food, and while doing so, they sometimes crawl over sleeping humans.