What is a common indicator of pests in crawlspaces?

Droppings and nesting materials serve as a crucial indicator of pests in crawlspaces because they directly suggest the presence of infestations by rodents or insects. When pests make a home in such areas, they often leave behind droppings that can vary in size and shape depending on the species. Finding these droppings not only confirms the activity of pests but can also help identify the type of pests present based on the characteristics of the droppings.

Additionally, the presence of nesting materials—such as shredded paper, insulation, or other debris—indicates that pests are not just passing through but may have established a den or nesting site in the crawlspace. This can help inspectors determine the extent of the infestation and inform effective treatment strategies to eliminate the pests and prevent future occurrences.

While puddles of water may suggest moisture issues that could attract certain pests, they do not directly indicate a pest presence. Old furniture might provide hiding spots for pests but is not a strong indicator on its own. Visible cracks in the foundation concern structural integrity and may allow access for pests, but they do not confirm an existing pest problem. Therefore, observing droppings and nesting materials stands out as the most reliable evidence of pest activity in crawlspaces.