France's Constitutional Council has invalidated the most contested provision of the Loi Duplomb, which sought to reintroduce acetamiprid, a banned neonicotinoid pesticide. The court ruled that this provision was contrary to the Environmental Charter, effectively maintaining the pesticide's prohibition in France despite its authorization in Europe until 2033. This decision has sparked division among agricultural stakeholders, with some farmers and agricultural unions condemning the ruling as detrimental to their industries, particularly sugar beet and hazelnut producers, while environmentalists and left-wing groups have welcomed it as a victory for health and environmental protection. Laurent Duplomb, the law's author and a senator from the center-right Les Républicains, expressed disappointment and indicated plans to propose new legislation to reintroduce acetamiprid. The French government, led by President Emmanuel Macron, promulgated the Loi Duplomb without the contested pesticide provision. The Agriculture Minister warned of risks to certain agricultural sectors following the court's decision. The debate has also prompted calls for a European reevaluation of acetamiprid's health impacts. The ruling reflects ongoing tensions in France over pesticide regulation, balancing environmental concerns with agricultural interests.