Vines are a major consumer of pesticides. Pesticide contamination has been reported for all environmental compartments in the wine-growing context, prompting the definition of more sustainable vine-growing methods. Intra-parcel heterogeneity in vineyard plots is high, due to the fact that vines are grown in rows, pesticides are applied mainly to these rows, and several soil management practices coexist within a plot (chemical weeding, tillage, grassing). To evaluate the environmental dispersion and fate of pesticides in vineyards, we have developed a new field plot model adapted to this intra-field heterogeneity and representing the main pesticide fate processes, spraying location and soil management practices. The model distinguishes between rows and inter-rows compartments so that different management practices can be applied. Concerning the processes, the model is based on the coupling of the following three sets of modules: - a mechanistic soil fate module from the VSoil modelling software platform that simulates water, heat and pesticide transfers in dissolved or gaseous form. Physico-chemical equilibrium is assumed between the solid, liquid, gaseous phases in soil. Volatilisation is calculated from the soil and the vine leaves. Pesticide exchange rate between surface run-off water and soil surface layer is assumed proportional to the pesticide concentration gradient. - a three sources energy balance module explicitly considering the proportions of plot area covered by bare soil, vine canopy and grass cover. - a module simulating the evolution of surface conditions, which includes the simulation of the dynamics of spontaneous herbaceous cover in inter-row compartments considering water stress and the changes in soil hydraulic conductivity according to soil management. This presentation will focus on a description of the model, and a first set of evaluations. The model is part of the MIPP model of pesticide fate in agricultural landscapes developed in the modelling software platform OpenFLUID.