Syngenta, a global leader in agricultural innovation, announced today that its latest weed control solution, metproxybicyclone, has been recognized under a new chemical subclass of herbicides. The decision, by the Herbicide Resistance Action Committee (HRAC) and the Weed Science Society of America (WSSA), reflects metproxybicyclone's distinction as the fourth generation of ACCase-inhibitors, an important class of herbicides. The third generation of ACCase-inhibitors, represented by Syngenta's leading molecule pinoxaden, was launched in 2006; the nearly two-decade long gap in ACCase subclass innovation reflects in part the extreme challenges in finding new, effective and safe solutions.