For cockroaches, cooked rice can be mixed with a small amount of sugar to make it even more appealing. When paired with boric acid, the mixture becomes an effective bait. As roaches eat it or pick up the boric acid on their bodies, they ingest the substance while grooming themselves. Boric acid damages their digestive system and eventually kills them. Because cockroaches live in groups and come into contact with one another, the effect can spread through part of the colony. Boric acid should always be placed where children and pets cannot reach it.

Traditional remedies for rats sometimes combine uncooked rice with ingredients such as plaster or baking soda. However, the effectiveness of these methods is not well supported by scientific evidence, and some common claims about how they work are inaccurate. If you choose to use homemade baits, they should be handled with caution to avoid exposing pets, wildlife, or children to potentially harmful substances.

The most reliable way to control pests is to combine safe baiting methods with prevention. Cockroaches thrive in damp areas with access to food, while rats are attracted to crumbs, open food containers, clutter, and easy entry points. Cleaning regularly, fixing leaks, sealing cracks, and storing food securely make your home much less inviting to both pests.

Rice-based baits can play a role in an overall pest-management plan, but they are not a complete solution. Regularly checking for signs of activity, adjusting bait placement when necessary, and addressing sanitation issues are key to long-term success. If an infestation becomes severe or continues despite your efforts, contacting a professional pest-control service is the safest and most effective way to restore your home.