Control of bedbugs is best achieved through:

Bedbug control is most effective using Integrated Pest Management (IPM) practices, which combine multiple methods such as inspection, monitoring, heat treatments, vacuuming, and targeted pesticide use. TheGeneral Pest Management: Guide for Commercial Applicators - Category 7A(Chapter 7: Bedbugs) emphasizes IPM due to bedbugs’ resistance to many pesticides and their ability to hide in cracks and crevices. Option A (programmed pesticide application) is less effective and can lead to resistance. Option C (residual insecticides) is a component of control but not the best standalone method.