Data used in the paper entitled "Deployment of organic farming at a landscape scale maintains low pest infestation and high crop productivity levels in vineyards" Authors : Muneret, L., Thiéry, D., Joubard, B. & Rusch, A. Journal : Journal of Applied Ecology Data collected in 2015 (from May to September) # What is this data set ? Our study sites were located within a vineyard-dominated region (44°81'N, -0°14'W) of the Bordeaux area in southwestern France. Our study system consisted of 21 pairs of organic and conventional fields (42 fields) selected along two orthogonal landscape gradients: one of semi-natural habitats and one of organic farming The landscapes variables have been calculted at four spatial scales: 250-, 500-, 750-, 1,000-m. The average distance between the two fields of a given pair was 125 m. Seven pest taxa, including five arthropod pests and two pathogens, were regularly quantified over four periods between May and September 2015. All pest taxa were counted on 30 vine stocks at each time period. # Description of the variables used in the models. vineyard Name of the vineyard farming_system Farming system ('Organic' or 'Conventional') landscape Name of the landscape sampling_date Name of the sampling date O_mealybug Number of vine stocks infested with at least one mealybug (on 30 vine stocks) O_mite Number of leaves infested with at least one mite gall (on 90 leaves) O_downymildew Number of leaves infested with at least one spot of downy mildew (on 90 leaves) O_blackrot Number of leaves infested with at least one spot of black rot (on 90 leaves) O_phylloxera Number of leaves infested with at least one phylloxera gall (on 90 leaves) N_leafhopper Total number of leafhopper larvae counted on 90 leaves N_grapemoth Total number of nests of grape moths counted on 90 grapes buffer Distance used to calculate the proportion of semi-natural habitats and the proportion of organic famring (metre) prop_SNH Proportion of semi-natural habitats (/1) prop_OF Proportion of organic farming (/1) TFI_Herbicide Treatment Freqency Index of herbicides TFI_Insecticide Treatment Freqency Index of insecticides TFI_fungicide Treatment Freqency Index of fungicides field_age Age of the vineyard vine_stock_density Number of vine stocks per hectare field_area Vineyard area (hectare) NDVI Normalized Difference Vegetation Index (vigour, unitless) N_year_conversion_OF Number of years since the conversion to organic farming N_grape Mean number of grapes per vine stock (/20 vine stocks) W_grape Mean weight of grapes per vine stock (/25 cluster grapes) yield Yield (tons)