Year of market introduction (Commercial) or publication (Experimental) of the first herbicide with a given MoA. The MoA of the corresponding herbicide might have been elucidated at a later date. The molecular MoAs of cinmethylin and oxaziclomefone are still not fully understood, despite articles describing biochemical effects attributed to these compounds. AdSS, Adenylosuccinate synthetase; AMPDA, AMP deaminase; Auxin, auxin herbicides; Cellulose, cellulose biosynthesis inhibitors; CytOx, cytokinin oxidase; DHPS, dihydropteroate synthase; DXR, 1-deoxy-d-xylulose 5-phosphate reductoisomerase; DXS, 1-deoxy-d-xylulose 5-phosphate synthase; EPSPS, 5-enolpyruvylshikimate 3-phosphate synthase; FPS, farnesyl-diphosphate synthase; GibB, gibberellic acid biosynthesis; GPAT, Gln phosphoribosylpyrophosphate amidotransferase; GS, Gln synthetase; GSAT, Glu semialdehyde aminotransferase; IGPD, imidazole glycerol phosphate dehydratase; IMDH, 3-isopropylmalate dehydrogenase; KARI, ketol acid reductoisomerase; LyCyc, lycopene cyclase; Microtubule assembly, inhibitors of microtubule assembly; Microtubule organization, inhibitors of microtubule organization; ObtDM, obtusifoliol demethylase; PDS, phytoene desaturase; PPO, protoporphyrinogen IX oxidase; PyrDH, pyruvate dehydrogenase; TrpS, Trp synthase; VLCFA, very-long-chain fatty acid biosynthesis; ZDS, ζ-carotene desaturase.