One of the world's largest agrochemical companies has quietly withdrawn from a market it helped define, leaving farmers in Australia and New Zealand to reckon with what it means when a reliable anchor departs. Syngenta's exit from paraquat sales — prompted by tightened regulatory conditions and an increasingly costly supply chain — is less a dramatic rupture than a slow unravelling of a decades-long commercial relationship. The herbicide itself remains available through generic suppliers, yet the question of who bears the cost of transition, and who absorbs the uncertainty of a market now lean