In pest control, how should sensitive areas be approached to avoid collateral damage?

Using biological control methods is the most effective approach to managing sensitive areas in pest control while minimizing collateral damage. Biological control involves the use of natural predators, parasites, or pathogens to keep pest populations in check. This method is advantageous because it targets specific pest species and tends to have less impact on the surrounding ecosystem, including non-target organisms.

By opting for biological control, pest management can be conducted in a way that respects the delicate balance of the environment, particularly in sensitive areas such as schools, hospitals, or regions with endangered species. This approach helps preserve beneficial insects and reduces the risk of chemical residues causing harm to humans, wildlife, and plants.

In contrast, the other methods presented could lead to unwanted consequences. Heavy chemical treatments can cause significant harm to non-target organisms and the wider environment, while permitting free access to pests does nothing to manage the problem and therefore increases the risk of damage. Relying solely on glue traps may be insufficient as they can be inhumane and may not effectively address larger infestations. Thus, biological control is the preferred method for sensitive areas in pest management.