A parliamentary amendment that slipped two banned pesticides back into French law has triggered the resignation of the country's most senior environmental minister, exposing deep fractures inside Prime Minister Sébastien Lecornu's fragile governing coalition.

The flashpoint amendment

The emergency agricultural bill, initially conceived last winter as a compact response to months of farmer protests, ballooned during its legislative journey to nearly 70 articles. Among them was a provision added by parliamentarians, not the executive, empowering the national food and environmental safety agency ANSES to exceptionally reauthorise acetamiprid and flupyradifurone. Both are neonicotinoid substances outlawed in France but still licensed elsewhere in the European Union. The measure cleared the National Assembly in the early hours of Tuesday 21 July by 296 votes to 224, before the conservative-majority Senate gave final approval later the same day by 214 votes to 111.

'Tomorrow I will be gone'

Monique Barbut, who has held the Ecological Transition portfolio since October 2025, made her intentions plain during a small private meeting on Tuesday evening. "In my mind, I have no choice but to hand in my resignation. Either you are a minister or you are not. Today, in my mind, tomorrow I will already have left," she told the gathering, according to a report by franceinfo and subsequently carried by BFMTV, Le Monde and Le Parisien.

“In my mind, I have no choice but to hand in my resignation. Either you are a minister or you are not. Today, in my mind, tomorrow I will already have left.”

The 69-year-old economist, a former director of WWF France with a long career in climate diplomacy, had signalled privately that she would walk if the law passed unamended. A person close to her said she was "as surprised as other members of parliament" by the pesticide clause. Barbut met Lecornu at midday on Tuesday, but the prime minister had already announced on Monday that he would not table an amendment to strike the exemption, effectively sealing the confrontation.

“If my resignation is accepted, I leave. If it is refused, it will depend on what is said and how it is said tomorrow.”

Government damage control

Lecornu spent the morning of the vote urging lawmakers not to reduce the complex agricultural package to a single article. He insisted the reintroduction would be strictly limited to hazelnut orchards and would last only for a restricted period, an argument echoed by Agriculture Minister Annie Genevard, who backed the provision as a concrete answer to sectoral distress. The government's line, however, failed to quell a revolt among its own supporters. Left-wing opposition parties denounced the law and vowed to challenge it before the Constitutional Council.

A fragile majority under strain

The resignation lands just as Lecornu's cabinet was preparing for its weekly Council of Ministers meeting on Wednesday, opening a crisis inside an executive that commands only a relative parliamentary majority. The episode is the third major piece of agricultural legislation in under three years, following a February 2025 agricultural orientation law and, a year ago, a contentious statute on obstacles to the farming profession. Each iteration has widened divisions within the Macronist camp, and the acrimony surrounding the votes on 21 July laid bare the tension between France's ecological commitments and the political imperative to placate an emboldened farming lobby.

The bill's trajectory from a narrow emergency measure to a sprawling 70-article text illustrates how the parliamentary process can reshape an executive's agenda. The pesticide clause was never in the government's original draft; it was inserted via amendment and survived the joint committee that reconciled the two chambers last Thursday. For Barbut, the breaking point was not merely the substance of the article. "Even more than the article on acetamiprid, it is the government's refusal to debate it," a source told franceinfo. By Wednesday morning, her departure appeared certain, though the president's formal acceptance or rejection of the resignation still hung in the balance.