there are thousands of successful experiences of localized enhanced pest and weed management water efficiency and biodiversity including stories of highly successful innovation in the most challenging circumstances characterized by a poor natural resource base and widespread poverty world bank a c thapa and broomhead spielman and pandyalorch africare oxfam america and wwficrisat project pretty and others while indigenous female workers have experience in the management of biodiversity and traditional knowledge for sustainable agriculture poor access to land inputs and credit has often prevented the expansion of that successful experience world bank the integrated pest management ipm approach proliferating farm field schools and the system of rice intensification sri are good examples of creative innovation that achieved largescale impacts through highly effective collaboration among multiple stakeholders see box iiil the projects evaluated encompassed per cent of cultivated area in developing countries