And if the roach is big—say, 1 1/2 inches or bigger—it could be an outdoor species that's less likely to thrive indoors. The problem is that even if it is all alone, it could be a pregnant female, or the first of a colony that's living right outside your home.
When they enter your home, it's often by accident or there is available food and water. These roaches are large and mostly live a solitary life, meaning they travel alone. Sweep them out of the home or kill them and you typically won't have any other issue.
Unfortunately, cockroaches are not loners. If you see one, there are likely many more that you can't see. Cockroaches are nocturnal creatures, so you'll most likely spot them late at night, especially if you walk into your kitchen and turn on the light.
As mentioned, when roaches come into your house, it's usually because they're looking for food, water, and shelter, and these pests have the ability to make their way inside tiny openings you may not even realize are there, including: Cracks in your home's exterior walls. Dryer Vents.
Cockroaches seek places where they can find ample food. Food crumbs, spills, leftovers, and pet food are the most common food sources. Kitchen trash and grease on stovetops and countertops can be inviting for roaches, and they may also get into stored food items.
Physically Seeing a Roach
You may be wondering: "I saw one cockroach, should I be worried?" If you spot even one roach during the daytime, it can mean the infestation has been going on for some time or that it has progressed to the point where drastic action must be taken immediately.
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.
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.
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.
Cockroach lifespan
Each species of cockroach has their own estimated lifespan but on average, cockroaches live for about one year. Factors such as food supply, habitat and climate affect lifespan. American cockroaches can live for about one year while German cockroaches are estimated to live for about 100 days.
Cockroaches have an incredible sense of smell that they use to find food. You can take advantage of this fact by using scents they dislike such as thyme, citrus, basil, mint, and citronella to repel them from your home.
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.
Do Cockroaches Like Light? In general, cockroaches are active during the night, and when it is daytime, they will spend most of their time sleeping. These insects will run away, except for the Asian Cockroach, which is usually attracted to light when exposed to the light.
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.
With around 12 young in every egg case, a female and her offspring can produce 800 additional cockroaches in just a single year.
If you start to spot the signs of roaches in your home or even notice them crawling around at night, it's best to contact your local roach exterminators. Even one roach is often a sign there are many more established in your home.
American cockroaches can grow to be 1.5-2 inches long, or about the size of a cucumber slice. Giant burrowing cockroaches are around 3.5 inches long, or the size of an avocado. They sure do live up to their name!
Their nests can often be found near plumbing fixtures in bathrooms and kitchens, in cupboard cracks or under drawers, inside appliances or underneath the fridge. You may also notice cockroach droppings around the nest's location or your nose will help you sniff it out — most have a strong, foul odour.
Cockroach eggs look like small tan, brown or black capsules shaped something like a pill or a purse. German and American cockroach eggs are approximately 1/3-inch (8 mm) long, while those of the Oriental and SmokyBrown cockroaches are slightly longer, reaching lengths of almost ½ inch (12 mm).
White vinegar is often recommended as a natural way to get rid of roaches. Unfortunately, it doesn't actually kill these problem insects. It's more of a cleaning tool than anything else, and it won't actually help eliminate your roach problem.
If you are thinking about getting rid of cockroaches by flushing them down the toilet, think again. Cockroaches are dangerous to have around. These filthy creatures are directly linked to stomach illness, asthma and various diseases.