Protecting vegetable fields from nutsedge (Cyperus esculentus) spread

This article addresses the growing threat of nutsedge (Cyperus esculentus) spread in vegetable production systems, focusing on risks from washing stations and basin-to-basin transmission. It details field trials conducted in Normandy, particularly in the Côte d'Opale, La Manche, and Val de Saire regions, to reduce the weed’s seed bank and tuber load. The programme emphasizes preventive measures, diagnostic monitoring, and coordinated action across harvests in the Yerres Valley to limit intra- and inter-basin spread, especially under increasing phytosanitary restrictions.