Spray drift in arboriculture: A dataset to analyse the influence of spray application techniques, anti-drift nets, and their combinations on the reduction of sedimentary drift, aerial drift and exposure of bystanders.

In 2021 and 2022, the national and cross-sector project CAPRIV funded by the French Agriculture Ministry, made it possible assess the influence of application techniques associated or not with a hedge, or an anti-drift net on spray drift and bystander exposure. The acronym CAPRIV stands for "Concilier l'application des PPP et la protection des riverains" (Reconciling the use of PPPs and the protection of residents), within the orchard, viticulture, and field crop sectors. This specific data article focuses on arboriculture, especially on trellised pome fruit. Over the two years, sprayers with contrasting performance (axial airblast sprayer with and without anti-drift nozzles, pneumatic sprayer with directional flow) were used to measure the drift potential with and without a net. The solid set canopy delivery system "PulVefix" and border row management techniques were also evaluated. Spray drift has been measured according to a common protocol harmonised between cropping sectors within the project. Three different types of passive drift collectors were used: Petri dishes for measuring sedimentary drift, PVC wires placed between two masts for measuring airborne drift and cotton Long sleeve shirts placed on manikins to assess potential dermal exposure of bystanders. The sprayed mix contained a fluorescent dye and water. The mass of dye was measured using a classical technique with dilution and concentration evaluation. Two fluorescent dyes were successively used, Brillant Sulfaflavine and Sulforhodamine B. A total amount of 3573 collectors were analysed individually. The data set provides a drift index for each collector expressed as the quantity of dye recovered per unit area of collectors on the quantity of dye applied per unit area on the sprayed field multiplied by 100.