Cockroaches are among the most common pests in many homes and other buildings. At night they search for food in kitchens, food storage places, rubbish bins, drains and sewers. They are pests because of their filthy habits and bad smell. Some people may become allergic to cockroaches after frequent exposure. Cockroaches can sometimes play a role as carriers of intestinal diseases, such as diarrhoea, dysentery, typhoid fever, Amoebiasis, Polio and cholera.
They also have the potential to cause allergic reactions and worsen existing cases of asthma. Certain people are allergic to proteins found in cockroach faeces and saliva, the exposure to which can result in skin rashes, coughing, wheezing, and shortness of breath. These same roach allergens can also trigger serious asthma attacks, especially in children. Asthma alone can be a life-threatening disease, and a large portion of asthmatics are also allergic to cockroaches, leading to much worse symptoms when they are in prolonged proximity with theses insects.
They are also known to carry a number of bacteria, which could give rise to serious illness in humans.
Can cockroaches fly?
Many species of cockroaches have wings, but not all are good flyers. In fact, most cockroaches do not fly at all.
There are several species capable of flying short distances and a number of other species – including American cockroaches – that use their wings to glide from high elevations to lower surfaces.
How long can a cockroach live for?
Up to a year
How many young can a pregnant cockroach have?
A female German cockroach carries an egg capsule containing around 40 eggs. She drops the capsule prior to hatching. Development from eggs to adults takes 3-4 months. Cockroaches live up to a year. The female may produce up to eight egg cases in a lifetime; in favorable conditions, it can produce 300-400 offspring. Other species of cockroach, however, can produce an extremely high number of eggs in a lifetime, but only needs to be impregnated once to be able to lay eggs for the rest of its life.
Can cockroaches survive a nuclear blast?
No. This is one of the most common myths to be quoted as a fact. The truth is that a cockroach can withstand 10 times more radiation than a person, but they would not survive a nuclear event. However, there are much easier ways of getting rid of them.