Montpellier Méditerranée Métropole has initiated the launch of Plans for the Improvement of Phytosanitary and Horticultural Practices on the municipal and metropolitan public spaces of ten municipalities, as part of an approach to protecting the groundwater resource implemented on the west of Montpellier (priority catchment of Flès). These studies have resulted in plans to invest in equipment allowing the management of spaces without plant protection products. Plans for communications to the population and training for elected officials and municipal officials are also defined. The project consists of financially supporting these actions.