Make sure to keep kitchen work surfaces, as well as machines and appliances, clean to prevent cockroach infestations. Rubber stoppers can also be used to cover kitchen and bathroom drains. For this reason, always make sure the container lid is closed.

Cockroaches in the Garbage Cans
As mentioned above, garbage cans are an easy attraction for cockroaches. You should then flush the drain and remove any food residue.
To properly clean your drain, you can rely on many natural and eco-friendly solutions, such as baking soda or white vinegar, which are excellent natural drain cleaners.

A handful of diatomaceous earth is enough to eliminate cockroaches around drains. Diatomaceous earth is a highly effective insecticide powder that eliminates all types of insects.

Diatomaceous Earth:
It is applied by spreading this powder around the pipes. Try not to miss any areas that could be an entry point for cockroaches.

In any case, it can be used anywhere in the house. This powder dehydrates cockroaches and eliminates them. However, as a precaution, it is best to keep pets and children away from this insecticide dust.