By examining long-term data, changes in land use, climate, & agricultural technologies that could affect pest severity and management can be analyzed.

"During the past several decades dramatic improvement has occurred in agricultural productivity and livelihoods in South and East Asia, stimulated by the Green Revolution and supported by several other factors.

During the past several decades dramatic improvement has occurred in agricultural productivity and livelihoods in South and East Asia, stimulated by the Green Revolution and supported by several other factors.