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.”
First of all, cockroaches like to go around during the night, which coincidentally is when people sleep. So by virtue of just lying there motionless, we become likely victims. Cockroaches also like small, warm, humid places. And ears qualify as all of the above.
When alert overnight, cockroaches will begin their endless hunt for food. They will eat just about everything and can navigate your dark kitchen to seek out any crumbs they can find. Research has shown that nighttime cockroach activity happens primarily during the hours just before midnight.
Will Sleeping With The Light On Keep Cockroaches Away? No, sleeping with the lights on will not deter and keep cockroaches away. Although they are nocturnal, they aren't afraid of the light and it won't keep them away from an area of your home.
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.
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.
Turning up the AC may not look good on your energy bill but at least your house will be cockroach-free. There's a reason why we see roaches in the summer, and they vanish during the winter – cockroaches hate the cold. Always turn up the AC.
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.
Cockroaches are attracted to food and water sources. Dirty dishes, crumbs, food spills, leftovers, garbage, and pet food will all draw cockroaches in.
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.
As long as the temperature indoors is above 50 degrees, roaches can remain active year-round, although they are more prevalent in the spring and summer months.
Females have an estimated adult lifespan of 180 days, while males have an adult lifespan of about 160 days. Cockroaches are one of the oldest living insects on the planet. Their life cycle plays an important role in their ability to survive and populate the earth.
The most obvious sign you have a cockroach problem is actually seeing one. Since they are nocturnal insects, the best time to spot roaches is during the night. You'll typically see them scatter after you enter a room and turn on a light.
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.
Squashing a cockroach can spread disease
The World Health Organization also advises against crushing them, for reasons of hygiene.
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.
The results of the investigation on what color will repel the greatest number of cockroaches, indicate that red light repels a greater number of roaches than the other five colored lights and the control group of no light. Green light deterred the second most roaches followed by white, yellow, and blue.
It's been said by some that a clean house is a roach-resistant house. There's some truth to that. By keeping a clean dwelling, you'll give roaches less of a reason to intrude upon your happy home. There is more to keeping roaches at bay than just having spotless floors, however.
They do not develop or reproduce when temperatures are too cold (below 45° F) or too hot (above 115° F). Hot and cold temperatures can be very effective in killing cockroaches, but the adverse temperatures must be maintained for a period of time.
Do Cockroaches Like the Cold? Generally, cockroaches don't like the cold one bit. They are cold-blooded arthropods that don't survive very well in either extremely cold or hot circumstances. They're always at whatever temperature their environment is and generally slow down with cooler temperatures.
Two of the most common cockroach predators are toads and frogs! Both of these amphibians are known for eating insects like flies, but they also gladly welcome cockroaches.
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.
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.