Sealing cracks and crevices and small openings in buildings is an example of which type of mechanical control method?

Sealing cracks and crevices and small openings in buildings is categorized as an exclusion method in mechanical control. This approach focuses on preventing pests from entering a structure or specific area by blocking their access points. By sealing these openings, you create a physical barrier that helps to keep unwanted insects and rodents out, thereby reducing the likelihood of infestations.

Exclusion is considered a proactive strategy in pest management because it addresses the problem at its source—preventing pests from getting inside in the first place. This method is effective for long-term control and integrated pest management programs, as it reduces the need for chemical treatments and promotes a healthier living environment.

The other choices represent different mechanical control methods. Cultivation typically involves farming practices that help manage pest populations through soil manipulation or crop rotation. Trapping involves using devices to capture pests that are already present, while mulching is a technique used primarily in gardening to prevent weed growth and maintain moisture in the soil but does not directly relate to pest exclusion.