Cockroaches are insects that can be found in any building or home. It's not true that cockroaches are only found in dirty and poorly kept buildings or homes. However, poor sanitation and housekeeping is a major factor that leads to an infestation. Cockroaches are often brought into a non-infested building by food, furniture or clothing that's infested with live cockroaches and their eggs. Cockroaches are nocturnal insects and are active at night. They're extremely fast, can walk on the ceiling and can climb a smooth glass surface.
Other interesting facts about Cockroaches: https://www.thoughtco.com/fascinating-facts-about-cockroaches-1968524
In Alberta the German Cockroach is the most common cockroach and can be found in homes, apartments, restaurants and grocery stores. The German Cockroach is usually about 1.3 to 1.6 cm. (0.5 to 0.6 inches) long. During the day cockroaches hide in groups behind baseboards, in cracks and crevices in the kitchen and under stoves, fridges and dishwashers. They favor humidity, leaking faucets, wet sponges, wet washcloths and standing water.
Cockroaches multiply very quickly. A mature female cockroach creates an "egg case" that holds about 50 eggs. The female cockroach leaves the case in a place that isn't likely to be disturbed (crevices, briefcases, ect.) The eggs take about 1 month to hatch. Cockroaches become adults in 2 to 4 months. They live about 6 months. Cockroaches die if they go without food or water for 2 weeks. Cockroaches contaminate food with their feces. Their feces have an oily liquid in it that smells very bad. It can make the whole room smell. Even utensils that seem to be clean can smell.
Many people are allergic to an allergen found in cockroach feces. They can make asthma worse. The feces with the allergens in it can stick to the dust and become airborne which mean you may breathe them in. The allergens can also be eaten if the food's contaminated. Cockroaches can also contaminate food with bacteria that can cause food poisoning or diarrhea. These bacteria include Salmonella, Staphylococcus, Streptococcus and Coliform.
Closely examine all food, used appliances, furniture, ect. that you bring into your house. Destroy any egg capsules you see. Caulk all cracks and crevices. Keep the kitchen clean (sweep or vacuum often). Make sure garbage is put in a container that has a tight lid. Don't keep pet food in the feeding dish overnight. Screening vents, ducts and windows. Repair any leaky water pipes or faucets. Recycle cans and bottles on a regular basis, wash and clean containers that hold recycling items. Cockroaches feed on all types of organic materials including paper, wood, soap, glue in a book, plants, hair, garbage, sewage and even insulation on electrical wiring.
If the problem is bad, it's best to hire Pest Busters Pest Control. We use target control products to exterminate the cockroaches. Pesticides alone won't be successful since the living environment must be physically changed first. (Cleaning as well as vacuuming to help remove food particles and insect egg masses)