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    Acceptance of "zero pesticides" in public places

    Social economic study 2017-2018

    Partners: GRANEM (Angers University) and Plante & Cité

    The ANgevin Research Group in Economics and Management (GRANEM) is a research team of the University of Angers, composed of economists and managers, and specialized in the analysis of the behavior of economic actors and the evaluation of policies in different areas, including the environment.

    Plante & Cité is a national organization of studies and experiments specialized in green spaces and landscape. This technical center ensures the transfer of scientific knowledge to green space professionals, businesses and local authorities.

    This projet is financed by the French Agency for Biodiversity (Ecophyto project) (€ 15,000, 12-month project)


    Marianne Lefebvre: maître de conférences IUT Angers - GRANEM (projet coordinator)

    Pauline Laïlle: project manger at Plante & Cité

    Masha Pautrel : maître de conférences Faculty of Law, economy and management - GRANEM

    Rafiou Alfaboukari: Master 2 student (April to September 2017)

    Contact: marianne.lefebvre @ univ-angers.fr, pauline.laille @ plante-et-cite.fr



    Since 1st January 2017, the use of phytos products is prohibited for the maintenance of public green spaces. While a number of technical references exist today on alternatives to pesticides for the management of green spaces, this project investigates peoples attitudes towards the consequences of "zero pesticides" for both the costs of this change and the benefits of these new types of green areas in the city.

    The acceptability of the "zero pesticide" is the subject of many misconceptions: "the managers are not ready to accept such a change in the landscape", "the inhabitants are insensitive to the risk of deterioration of working conditions for workers. maintenance agents","elected officials want it to cost less", etc. This survey of the attitudes of the different actors will confirm or refute certain received ideas.


    The objective of this project is to study, through a national online survey, the attitudes of managers of public green spaces, elected officials and urban residents, towards the changes induced by the management of green spaces without pesticides. The consequences in terms of aesthetics and quality of use for residents, working conditions for maintenance staff and changes in the operating budget are taken into account.


    To do this, we apply a survey method called "choice modeling", which evaluates the attitudes of individuals for certain characteristics of a good or service. Respondents face a succession of choices and must choose one option out of a choice of two. Compared to other survey techniques, this methodology allows a better understanding of the tradeoffs between different characteristics of the good or service studied.

    The method of modeling choices is widely used in environmental valuation, but it has so far been used very little for the development of urban green spaces, and never before in France. The ACCERO project is, to our knowledge, the first example of this method applied to the question of the reduced phytosanitary products in urban green spaces.

    Expected results

    The study of the three target audiences attitudes will provide a better understanding consequences of the changeover to "zero pesticide" felt by each of these groups of actors. In addition, the comparison of the results obtained on each of these three panels will confirm or refute certain misconceptions about the acceptability of this or that consequence, and thus may help to remove some of the barriers. These results will also propose communication messages concerning "zero pesticides" intended for the three target audiences.