Identify one type of inspection method used in pest control.

Visual inspection is a fundamental inspection method used in pest control. This approach involves a thorough examination of an area to identify signs of pest activity, damage, or conducive conditions for pest infestations. Inspectors look for physical evidence such as droppings, nests, or structural damage that may indicate the presence of wood-destroying pests like termites, carpenter ants, or wood-boring beetles.

Visual inspections are essential because they allow pest control professionals to gather important information about the extent of any infestation and identify potential entry points or conditions that could lead to future problems. This type of inspection can be conducted with various tools such as flashlights, mirrors, or even moisture meters to assess hidden or hard-to-reach areas, ensuring a comprehensive evaluation of the property.

This approach is often the first step in creating a pest management plan, making it a critical part of the structural pest control process. In contrast, other methods mentioned such as aeration, soundwave, or mechanical inspections are not standard or widely recognized methods for identifying pest infestations in this context, making visual inspection the most relevant answer.