Which of the following is a non-chemical control method for rodent management?

Sealing all rodent entry points into the structure is a non-chemical control method for rodent management because it prevents rodents from accessing the building in the first place. This strategy focuses on exclusion, which is a fundamental aspect of integrated pest management. By blocking potential entry points such as gaps in walls, openings around pipes, and holes in foundations, you effectively reduce the chances of an infestation without relying on chemical substances.

Other options involve the use of products or techniques that can be classified as chemical or semi-chemical. Using rodenticides introduces harmful chemicals into the environment, while setting up bait stations often involves the use of poisons designed to attract and kill rodents. Though ultrasonic repellents may not involve direct poisoning, they rely on technology that could be considered an artificial stimulus rather than a natural, preventative approach like sealing entry points.