The primary method of reducing the population of stored product pests is:

The primary method of reducing the population of stored product pests is sanitation. This approach involves maintaining cleanliness and order in storage areas, which significantly limits the resources available for pests to thrive. By regularly cleaning and removing food debris, spills, and infested products, you minimize breeding grounds and food supplies, thereby disrupting the pests' life cycle and preventing their establishment.

Maintaining stringent sanitation practices is critical for effective pest management, as it has both immediate and long-term benefits. It not only addresses current infestations but also acts as a preventive measure to deter future pest populations. This method is considered proactive and sustainable, creating an environment that is inhospitable to stored product pests.

Other methods, such as using pheromone traps, applying insecticides, and implementing cultural controls, can serve as supplemental strategies. However, they are most effective when combined with a solid sanitation program, as inadequate sanitation can lead to ongoing infestations and reduced effectiveness of any additional measures.