Maryland Category 7D – Rodent Control: Biology, Inspection, and IPM Strategies Practice Exam

Sealing gaps around utility lines should create a durable, pest-resistant barrier that also keeps moisture out. Escutcheon plates tightly close the opening around the pipe or conduit and provide a finished edge that blocks entry points. Metal flashing around the penetration reinforces the seal, channels water away, and resists gnawing and weathering over time. This combination gives a reliable, long-lasting solution for preventing rodent access and water intrusion, which is essential in integrated pest management and building maintenance. Using caulking alone can fail if gaps are large or move with settling; wood putty isn’t designed for moisture or electrical penetrations; and glue with tape isn’t durable or code-compliant for sealing penetrations.