The technical development concepts widely disseminated in intensive banana growing are based on the perfecting of increasingly high-performance rational agriculture. The objective announced is clearly that of maintaining or improving yields while limiting pesticide and fertiliser inputs. Beyond the ordinary approach of wishing to justify each application of fertiliser or pesticide (reducing inputs by eliminating systematic application), CIRAD-FLHOR has developed agricultural diagnosis tools, technologies and cultural techniques that can be used at field or production area scale.