HERBICIDAL COMPOSITIONS WITH PROLONGED ACTION AND IMPROVED SELECTIVITY

摘要

A composition for the extension and increase of the activity of herbicidal compositions containing as herbicidally active ingredient at least one carbamate and/or thiolcarbamate and/or chloroacetanilide and/or dichloroacetanilide derivative and optionally antidotes therefor, which comprises at least one thio- or dithiophosphoric acid ester of formula (I), wherein R stands for identical or different alkyl, alkenyl, isoalkyl, isoalkenyl, haloalkyl, haloalkenyl, isohaloalkyl or isohaloalkenyl groups, each containing up to 4 carbon atoms; R' represents identical or different alkyl, alkenyl, isoalkyl, isoalkenyl, haloalkyl, haloalkenyl, isohaloalkyl, isohaloalkenyl groups, each containing up to 4 carbon atoms; X is oxygen or sulfur, X1 is oxygen or sulfur, with the proviso that at least one of the X1 groups is other than oxygen.