"Cultural Control" in IPM refers to changing the environment and human behavior to reduce the conditions that support pests — it is the most foundational and long-lasting layer of all control methods.

It specifically includes: Sanitation management — promptly cleaning up food debris, sealing garbage, washing dishes and wiping down countertops.

Moisture control — repairing leaks, keeping areas dry.

Eliminating harborage — clearing clutter, using plastic sealed bins instead of cardboard boxes.

Proper storage — keeping food in sealed containers, storing lumber off the ground.

The core idea of cultural control is "deny pests the resources they need to survive" — without food, water, and harborage, pest populations naturally dwindle, often without even needing to use insecticides.

This is the most emphasized preventive measure in both agricultural and residential IPM.