Which modification type is a common pest-proofing practice?

Making physical alterations to structures is a recognized method for pest-proofing because it directly addresses entry points that pests might exploit. This can involve sealing cracks and crevices, installing screens, and repairing structural gaps that bugs or rodents could use to enter a building. Such modifications enhance the structural integrity against infestations, creating barriers that are far more effective and sustainable than merely increasing pesticide use or relying on toxic chemicals, which can pose health risks to humans and non-target organisms.

Physical alterations are proactive measures that help to prevent pest problems before they occur, whereas relying on chemical solutions may lead to a cycle of dependency that does not address the underlying issues that allow pests to thrive. In contrast, practices like increasing the frequency of pesticide application or using more toxic chemicals may temporarily remedy a pest problem but do not contribute to long-term pest management strategies. Reducing maintenance checks would likely exacerbate pest issues by not identifying potential problem areas that could be modified for better pest resistance. Thus, structural modifications stand out as the most effective pest-proofing practice.