The answer to 'natural inspection repellent' is to use essential oils and other natural repellents to deter pests during home inspections. Some effective natural repellents include peppermint oil, citronella, and lemongrass oil. Apply these around entry points, cracks, and crevices where pests may enter. You can also place cotton balls soaked in these oils in problem areas.
Be sure to reapply the natural repellents every 2-3 weeks or after heavy rain or wind to maintain effectiveness. Avoid using these in high-traffic areas where they could be a slip hazard. If you continue to have persistent pest problems, it's best to consult a professional pest control technician.