Getting into your home Cockroaches are very resourceful insects that can enter your home in a number of different ways, including: Crawling inside through small holes and cracks in the building. Hitching a ride on bags, backpacks, suitcases and other containers. Finding openings around doors and windows.
Food Sources: Crumbs, spills, or improperly stored food can attract roaches. Moisture: Roaches are drawn to damp areas, so leaky pipes or high humidity can contribute to infestations. Entry Points: Gaps, cracks, and openings in walls or around windows and doors can allow roaches to enter.
Even a clean house can attract roaches due to several factors: Food Sources: Roaches are attracted to food, including crumbs, spills, and pet food. Even small remnants can draw them in. Water Sources: Roaches need water to survive. Leaks, standing water, or even high humidity can provide the moisture they seek.
Once you see 2 roaches, you have an infestation—contact an exterminator as soon as possible. Roaches are nocturnal, so you won't find them when they're most active. If you see one during the day, get professional help ASAP—it's usually a sign of overcrowding.
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.
If you touch a cockroach, you risk becoming infected with some serious diseases, including bacteria that cause dysentery. According to the World Health Organization, cockroaches commonly transmit these diseases to humans: Salmonellosis.
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 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.
Unfortunately, the answer is most likely yes—seeing one cockroach often means there is more hiding nearby. Cockroaches are nocturnal and prefer to stay hidden in cracks and crevices during the day, which means if you see one, there's a good chance it's not alone.
Citrus is one of the scents cockroaches are most known to hate, notably lemon and orange. Keeping a dish of lemon juice on your kitchen counter can deter these pests, as well as placing lemon peels around the home to discourage cockroaches from coming out of hiding.
Your Best Bet for Deterring Cockroaches is a Clean Home
Take that away from them and their days are numbered, as long as you maintain it. Cockroaches can live up to three months without food, so they hide in dark corners of a property while they wait to go hunting at night.
Cockroaches form groups by producing chemicals called aggregation pheromones as signals to other roaches. These pheromones emit a musty odor. If a musty smell or tiny pellet-like droppings can be traced throughout a property or home, it may be a sign of a cockroach nest.
Cockroaches won't go away on their own.
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.
After roach sighting, throw out any food that was contaminated. Remove any other food items that were possibly touched by the bug. If you have already eaten the food unintentionally, you may not become sick right away. Repetitive eating, however, could lead to illness.
If you think you have cockroaches, do not panic. Finding roaches is not a sign that your house is dirty. Even if you clean regularly and maintain a tidy home, cockroaches can usually find food and water without much trouble. This allows them to thrive in many environments.
Smear Marks
In addition to droppings, cockroaches tend to leave streaks behind. You can often find these markings on walls; they are dark, irregular smears you can find in areas where they are most active.
If you spot one, odds are there are a few others lurking nearby, in dark corners or cracks and crevices and they could be fast on their way to a full blown infestation. Cockroaches are dangerous to humans – they carry bacteria on their bodies and their feet, contaminating any surfaces they come into contact with.
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.
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.
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.
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.
American cockroach life cycle
A female American roach can produce up to 224 offspring. American cockroaches go through 10 to 13 instars before reaching maturity. Adult males can live up to 362 days, whereas adult females can live more than 700 days.