Indoors, search for areas of high roach activity or indications of roaches, such as smears, egg casings, and droppings that appear like black pepper and have a definite odor. Use diluted vinegar to scrub surfaces. While vinegar is Harmless and eco-helpful, its effectiveness as a cockroach repellent isn't scientifically tested https://francisco8pzho.blogrenanda.com/38440930/the-best-side-of-cockroach-control