If you think roaches are a problem in your home, you should think about getting rid of them. Roaches can enter your home through small cracks, holes around pipes, and floor and door moldings. One of the best ways to get rid of roaches is to get rid of all sources of food, water, and moisture. Another option is to use salt. Putting salt or water on a door and window sill will also kill roaches.
Another common home remedy for roaches is diatomaceous earth. This substance has been proven effective against roaches and other pest insects. It is made from the fossilized remains of single-celled marine algae called diatoms. It looks like a jagged cylinder and is often used to kill roaches.
Dishwashing soap is another good option for killing cockroaches. It works by suffocating the insects. It is effective for single roaches, but not for entire nests. For severe infestations, it is better to contact a professional cockroach control company.
Another good way to kill roaches is to put up a soapy film over their living surfaces. The film forms a thin layer that prevents the roaches from breathing. This solution will work for a short while, but you will have to continue to apply it for good results.