Cockroaches are important household pests because ...
Cockroaches are important pests because they spread filth and ruin food.
This is very much due to the nature of their habitat and hiding places such as sewer and septic tanks which are full of filth and germs.
So, when they come into contact with our food, they are not only spreading filth and germ, but they are also ruining our food.
Cockroaches discharge a nauseous secretion both from their mouths and from glands opening on the body.
These secretions will give a long-lasting and offensive smell to areas or food visited by them.
For example, if your kitchen infested by cockroach, you could sense the smell the moment you open the cabinet doors.
Some people may become allergic to cockroaches after frequent exposure to them.
Because cockroaches move freely from building to building; from drains, sewers, manhole and septic tanks to human habitations to feed on human faeces as well as food stuffs, they are therefore able to spread gems that can cause human diseases.
Some of the diseases carried by cockroaches are diarrhoea, dysentery, cholera, leprosy, plague, typhoid fever, and viral disease such as poliomyelitis.