Integrated pest management (IPM) is a philosophy that urges a systems approach to manipulate pest densities. Programs based on this philosophy rely on field scouting or monitoring efforts and historical information upon which to make management decisions. All methods for manipulating pest populations are considered, and management programs use a combination of biological, non-chemical (cultural, physical and mechanical) and chemical methods over time to achieve management objectives. These programs strive to be 1) the least environmentally destructive, 2) the most effective for manipulating pest densities, and 3) the most cost effective.
Methods defined as "organic" certainly are valid options for implementation. However, IPM programs do not eliminate the potential for using methods and materials not defined as organic.
The following links should enable you to learn about pests and pesticides.