Which pest control method is least harmful to the environment?

Integrated Pest Management (IPM) is the least harmful pest control method to the environment because it emphasizes a holistic approach to pest management. IPM combines various strategies such as biological control, habitat manipulation, cultural practices, and the careful use of chemical controls only when necessary. This method prioritizes environmental health by aiming to minimize chemical use and applying them in targeted ways to reduce their impact on non-target species and the surrounding ecosystem.

Additionally, IPM incorporates monitoring and threshold levels to determine when pest populations necessitate action, thus avoiding unnecessary pesticide application. By focusing on sustainable practices and pest prevention, it promotes a balance between pest control and environmental conservation, making it a preferred choice in public health contexts.