Both of the experiments presented reflect actual conditions in the field, including climate variability. The results therefore show not only a range of pesticide dissipation potential through the artificial wetlands, but also provide an actual simulation involving a farmer at the farm scale. Both configurations gave positive results, but each within its own limits. The efficiency levels showed a close dependence on each chemical's sorption properties (Koc). The artificial wetlands are less efficient for mobile chemicals: efficiency also depends on the climate conditions and varies from one season to another. A larger storage volume and depth resulted in substantial dilution and this apparently reduced the biological degradation of the pesticides. Future studies should examine re-mobilization processes (desorption) in detail. Given the socio-economic stakes farmers must face, the off-stream configuration with the open/close strategy appears to be a good option to explore further. This configuration can strongly reduce the amount of land necessary for a similar level of efficiency. In addition, it can recreate a true wetland system, thereby favoring biodiversity. The in-stream option might work better if, for instance, water storage for re-irrigation of drained land during drought is of interest to farmers. Finally, the limitations found in the results prove that artificial wetlands, although promising, should be associated with a number of complementary measures from reduction at the plot level (reduction of the doses applied, adaptation of the treatment strategy) that also help limit of pesticide transfers from the catchment.