The Monroe IPM Model is designed to facilitate the transition from traditional pest control practices to a contemporary and verifiable IPM program in school districts. The model is an implementation plan providing the basic structure for organizing, maintaining, and evaluating a community-level program. The effectiveness of this model in ten school districts, in seven states (1-10 year duration) indicated an average 71% reduction in pesticide applications and 78% reduction in pest complaints to school administrations. The practical execution of the model resulted in the systematic diffusion of IPM in cohort school districts in Arizona. Considering the percentage of Arizona students attending IPM schools the following diffusion rates are apparent: 1.8% over the first two years (2000-2001); 10.4% in the following two years (2002-2003) and 18.2% over the last year and a half (2004- May 2005). As of May 2005, 30.4% of K-12 children in Arizona schools are benefiting from verifiable IPM programs. Diffusion and adoption was measured by IPM experts using a standardized assessment tool. Each school district was required to document implementation of IPM tools inherent to The Monroe IPM Model. During 2005, 38% of all state Cooperative Extension systems are participating in some form of school IPM support. Only 14% are implementing a documented strategy for diffusion.