How to prepare the remedy:
2 tablespoons of powdered boric acid
1 tablespoon honey or powdered sugar
A few drops of water, only if necessary to soften
Form small balls with the mixture and place them in critical areas: behind the refrigerator, under the sink, in corners, and near wall holes. Do not use around pets or children .
Other natural remedies that help
Bay leaves : their smell is unpleasant to cockroaches.
Peppermint essential oil : sprayed in corners, it works as a repellent.
Baking soda and sugar : another effective homemade mix, although less powerful than boric acid.
When to call a professional
If you notice that natural remedies are not enough, it is advisable to call a pest control company : the invasion could be widespread and nested in hard-to-reach places.
