The answer to 'natural cockroach repellent' is using natural ingredients like essential oils, diatomaceous earth, and boric acid. These can help deter cockroaches from entering your home and disrupting your living space. Essential oils like peppermint, eucalyptus, and tea tree oil have strong scents that cockroaches dislike. Diatomaceous earth is a powder made from crushed fossils that can cut the exoskeleton of insects, causing them to dehydrate and die. Boric acid is a natural mineral that is toxic to cockroaches when ingested.
To use these natural repellents, you can apply them in cracks, crevices, and other areas where cockroaches may enter your home. Be sure to reapply them regularly, as their effectiveness can diminish over time. If you have a severe cockroach infestation, it's best to call a professional pest control technician who can assess the situation and provide the most effective treatment options.