During the 1760s, the Affiches Américaines and the Journal de Saint-Domingue created a lively public forum to address colonial agricultural concerns that metropolitan learned societies largely ignored. Colonists enthusiastically embraced the same rhetoric of emulation and civic-mindedness as their counterparts in France while vigorously asserting intellectual authority based in practice. They sought to improve the cultivation of older but challenging crops, such as indigo and cotton, and to introduce new crops that would enhance the colony’s profitability, provide gainful employment for their society’s poorer members, and occupy unexploited ecological niches. To assess proposed innovations, they staged trials witnessed by expert practitioners; circulated information through manuscripts; and wrote up public answers to questions posed by the Affiches. This chapter also shows the limitations of local improvisations to solve agricultural problems as competing claims to intellectual authority based in experience created rifts between groups of colonists, colonists and the editors of their periodicals, and colonists and elite metropolitan institutions.