Cockroach season can vary depending on the region. For instance, in Texas and Florida, where the climate is generally warmer and more humid, roaches can be a year-round problem. In other parts of the US, roaches come out during the hottest months, usually from June through September.
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.
Attractor #1: Food
What attracts cockroaches more than anything is food. Roaches need food to survive. Eliminating access to food can help eliminate a roach problem. Throw away any food that has been left out on the counter.
Spread of Eggs
The number one reason to not squash a cockroach is to prevent spreading cockroach eggs. Some cockroach species, such as the German cockroach (common species here in the UK) carry their egg cases (ootheca) on their body until just before they hatch.
Citronella Oil
Its strong scent is known to deter roaches and other insects like mosquitoes and gnats. Homeowners can either directly apply the oil to areas frequented by roaches for the most effective application or dilute it with water to create a DIY repellent spray.
Center of gravity: Cockroaches have a high center of gravity and a rounded back, which makes them prone to tipping over. Once a cockroach is upside down, it struggles to gain traction on flat surfaces, making it hard to flip back over.
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.
What smells are cockroaches afraid of? Cockroaches are repelled by the smells of peppermint, eucalyptus, lavender, citronella, and cedarwood oils. These scents can be used as natural deterrents to keep them away from your home.
The best roach killer, based on our research, is the advion 383920 Cockroach Gel Bait; a commercial-grade roach killer set that is easy to use and lasts months after application. It can kill all sorts of cockroaches, including the American and German variety, and it's even safe to use if you have pets or kids.
Insects and Arachnids
Strangely enough, one of the most prevalent kind of predator that cockroaches face are fellow insects! The emerald cockroach wasp, Ampulex compressa, for example, has an unusual way of preying upon cockroaches. The wasp stings the cockroach's brain, which paralyzes the cockroach.
Leaving the light on doesn't deter cockroaches effectively because they can navigate in low-light conditions. While they're mostly active at night, they may still come out in search of food or water. During the day, cockroaches hide in dark areas not directly exposed to light.
Pine Sol can kill roaches on contact, though it's not a practical solution for a wide-scale infestation.
No matter how clean your home is, if there's some excess moisture somewhere, it could very well be an attractive invitation for your neighborhood roaches. This is one of the reasons why you'll commonly find roaches hanging out in your bathroom and laundry room or around an appliance that produces condensation.
How Long Do Cockroaches Live? Common pest cockroaches, depending on the species and sex, may live anywhere from a month to over a year. For example, German cockroaches live for about 100 days, but female German cockroaches may live for more than 200 days, and American cockroaches can survive for up to a year.
Roach nest, unlike birds' nests, isn't a physical structure but rather a hidden congregation point for roaches, typically in dark, moist areas close to food and water sources. To find a roach nest, look for signs like droppings that look like coffee grounds, oval-shaped egg casings, and increased night-time activity.
Pine is another strong smell that cockroaches seem to dislike. Using cleaning supplies like Pine-Sol may be effective in keeping these bugs at bay, as well as burning pine-scented candles around your home.
DIY spray: Spray the solution in areas prone to cockroach infestation, such as kitchen cabinets, under sinks and around appliances. Apply every few days for the best results.
A cockroach can feel the change in air current and change in the surroundings, and when they encounter us, they look in their surroundings, looks for a place from where they can escape, and then chase you, scare you, and make a run toward the escape. They use this strategy against many other predators.
Indoor Cockroach Predators
Inside, cockroaches typically die of old age. However, their remains feed a number of hungry creatures, resulting in yet more pest problems for residents. Beetle larvae, silverfish, and even other roaches make up the majority of what eats cockroaches inside the house.
It may surprise you to know that cockroaches are, in fact, able to bite humans. There have been reported cases of cockroaches biting fingernails, eyelashes and calloused skin on hands or feet. Cockroaches will also eat dead skin cells. However, cases of cockroach bites are extremely rare.
Yes, it's dangerous to ingest food after they've crawled over it, so your pantry is at risk. But it's also dangerous to stomp or smash them because the particles can get sent into the air where they can be swallowed or inhaled. And when you retrieve the dead bug your hands can become contaminated.
American cockroach
Their egg capsules are roughly ⅓” long and are dark reddish or blackish brown in color. Each ootheca holds about 16 eggs.
Don't try flushing a cockroach into a toilet bowl. You might see them resurfacing again! Cockroaches can hold their breath for 40 minutes, giving them adequate time to crawl up and escape. Your home is still not safe from cockroach infestation even when always kept clean.