Mostly cockroaches found in grocery bags, cardboard boxes, luggage or furniture and humid area such as waste food, dustbins etc. Sewers or drains are other cockroach entry points. Damp & Dark places will attract to cockroaches. They also travel through Plumbing walls and entered the house. Mixer, grinder, toaster, stove, juicer etc are the hiding places of the cockroaches.
There are many types of cockroaches occurs in our country some of them are American cockroach, Brown-banded cockroach, and German cockroach. These are mostly common species occurs at home, offices.
A cockroach carries bacteria that spread diseases like Dysentery, Cholera, Typhoid Fever, Food Poisoning, Allergens leading to asthma etc. They produced the oily liquid that stains on surfaces where they secrete. This secretion having a very bad odor due to this odor cockroach attracts other cockroaches. Also, they contaminate food and surfaces. Night time is the best time for cockroaches to crawling overnight at home, kitchens as in dark and most humid places are comfortable for them. They contaminate everything on the way of them and spread bacteria. They have strong legs and wings that protect them and help them to run out from hitting.