To avoid cockroach invasions inside the house, or to eliminate cockroaches without the use of insecticides, people can sanitize their houses, inspect items entering the house, trap and kill the cockroaches. Jarratt recommended inspecting items coming into the house, such as furniture, clothing, appliances and food containers. This prevents hidden cockroaches from entering the house. Besides sanitation and inspection of items, people can trap these insects by placing traps out overnight. Jarratt said cockroaches that enter these boxes, are trapped and die.
Exclusion is another way to keep roaches out of the house.
Seal these areas to avoid their entrance. When a person decides to use insecticide control in the house, several methods are available. Before controlling cockroach populations, identify the type of cockroaches present, to best attack the cockroaches where they live. Jarratt said there are nearly 3,000 species of cockroaches in the world. The differences among these cockroaches rely on their size, body color, reproductive period and habitat.