Abstract: Rice is one of the most important staple foods for more than half of the world’s population (IRRI, 2006) and influences the livelihoods and economies of several billion people. In 2010, approximately 154 million ha were harvested worldwide, of which 137 million ha (88% of the global rice harvested) were in Asia – of which 48 million ha (31% of the global rice harvested) were harvested in Southeast Asia alone (FAOSTAT, 2012) (Figure 1). The greatest levels of productivity are found for irrigated rice, which is the most intensified production system, where more than one crop is grown per year and yields are high – 12.5 tonnes/ ha/year compared with 2.5 tonnes/ha/year for rainfed rice. Approximately 45% of the rice area in Southeast Asia is irrigated, with the largest areas being found in Indonesia, Viet Nam. Philippines and Thailand (Table 1) (Mutert and Fairhurst, 2002). In Southeast Asia, where agriculture is a major source of livelihood, approximately 115 million ha of land are devoted to the production of rice, maize, oil palm, natural rubber and coconut (ADB, 2009). Rice has been feeding the region’s population for well over 4 000 years and is the staple food of about 557 million people (Manzanilla et al., 2011). In 2007, the average annual consumption per capita was about 197 kg (FAOSTAT, 2012) and provided 49% of the calories and 39% of the protein in the diet (FAOSTAT, 2012). Rice-growing methods have evolved through programmes such as farmer field schools [FFS], pioneered in Southeast Asia, that were successful in addressing pest management issues. They have advanced along with the accumulation of knowledge and technology that the people of the region have acquired in the quest for progress. Such has been the role of rice in that quest that, throughout Southeast Asia today, rice is more than just food: it is the central subject of economic policy, a determinant of national objectives, and an important anchor in the maintenance of political stability.