1998 1999 2000 Active substance 3rd 4th 1st 2nd 3rd 4th 1st 2nd 3rd 1-15 Oct Atrazine BAM (2,6- dichlorobenzamide) Benazolin Bentazone 42.942 61.799 Bromoxynil 25.802 1.576 29.115 4.238 Carbofuran Chloridazon Chlorsulfuron Cyanazine Desethylatrazine Desethylterbuthylazine Desisopropylatrazine Dicamba 0.901 Dichlorprop Dimethoate 8.442 Dinoseb Diuron DNOC Ethofumesate 22.835 10.206 Fenpropimorph 3.938 34.466 3.713 48.244 Flamprop Fluazifop Hexazinone Hydroxyatrazine Hydroxysimazine Hydroxyterbuthylazine Hydroxycarbofuran Ioxynil 27.616 1.576 29.115 4.092 Isoproturon 15.050  -16.878? 8.250 92.795 32.310 99.910 Lenacil Linuron 19.620 MCPA 15.267 10.073 Mecoprop Methabenzthiazuron Metamitron 28.028 56.158 Metribuzin 5.341 Metsulfuron-methyl 0.054 0.366 Nitrophenol Pendimethalin 19.040 68.876 47.412 105.568 44.990 38.772 97.114 Pirimicarb 1.613 2.050 Prochloraz 3.375 Propiconazole 1.775 10.886 1.238 13.183 Propyzamide Simazine Terbuthylazine 41.186 59.838 Thifensulfuron Triadimenol Triasulfuron 0.032 0.077 2,4-D 2,4-dichlorphenol