What are two physical control methods for pests?

The correct choice focuses on physical control methods, which involve non-chemical strategies to manage pest populations effectively. Traps serve as a direct means of capturing and removing pests, while exclusion techniques prevent pests from entering a structure by sealing entry points, thus reducing the likelihood of infestations. These approaches are particularly beneficial in integrated pest management (IPM), as they can reduce reliance on chemical treatments and minimize harm to the environment and non-target organisms.

The other options mentioned involve chemical methods or strategies that do not primarily rely on physical means to control pests. Pesticides and sprays, for example, apply chemical substances to eliminate pests rather than physically removing them. Fumigation and baiting also utilize chemicals to control pest populations, and repellents and insecticides are primarily designed to deter or kill pests chemically. Hence, while all choices address pest control, they do not fit the definition of physical control methods as accurately as traps and exclusion techniques do.