What is the primary method used to seal cracks and crevices in buildings?

The primary method used to seal cracks and crevices in buildings is exclusion. This approach focuses on preventing pests from entering structures by closing off access points. By sealing cracks, crevices, and any gaps in walls, floors, and foundations, the likelihood of pest invasions is significantly reduced. Exclusion is a critical component of integrated pest management (IPM) because it not only helps in controlling current infestations but also serves to prevent future issues by making it more difficult for pests to find entry points.

Using exclusion as a method is particularly effective for pests like rodents and insects that typically exploit small openings to gain access to buildings. This proactive measure emphasizes the importance of structural integrity and maintenance in pest control efforts. In contrast to methods like physical extermination, cultural control, and biological control, which focus more on active management of pest populations after they have established themselves, exclusion takes a preventative stance that is essential for long-term pest management.