Which type of pesticide application would you use to control cockroaches inside buildings?

Using a crack and crevice application is the most effective method for controlling cockroaches inside buildings. This technique involves applying pesticides into small openings, cracks, and crevices where cockroaches tend to hide, such as behind walls, under sinks, and around baseboards. Since cockroaches prefer dark, secluded areas, this targeted approach ensures that the pesticide reaches the pests directly in their hiding spots, increasing the likelihood of successful control.

In contrast, other methods are less suitable for indoor cockroach control. Broadcast applications cover a wide area, which may expose non-target areas and create potential risks to human health and safety. Granular applications might be useful in some situations but are not as precise and can lead to wastage of product if not applied directly in areas where cockroaches reside. Aerial application is entirely inappropriate for indoor settings and is primarily used for larger outdoor areas, making it irrelevant for the control of pests inside buildings.