![]() The results indicate that site-specific management for spray application in vineyards result in a 45% reduction of application rate when compared with conventional spray application. Adding to this information precise georeferenced placement of the sprayer, the system was able to modify the working parameters (pressure) in real time in order to follow the prescription map. By applying the specific software DOSAVIÑA ®, the canopy map was then transformed into a practical prescription map, which was uploaded into the dedicated software embedded in the sprayer. An unmanned aerial vehicle (UAV) equipped with a multispectral camera was used to obtain data to build a canopy vigour map of an entire parcel. The potential correlation will be the starting point to develop a variable rate application technology based on prescription maps previously developed. This study was conducted with the main objective to find possible correlations between data obtained from remote sensing technology and the actual canopy characteristics. The particular case of the spray application process for what are called “specialty crops” (vineyard, orchard fruits, citrus, olive trees, etc.) represents one of the most controversial and influential actions directly related with economical, technical, and environmental aspects. Site-specific management of crops represents an important improvement in terms of efficiency and efficacy of the different labours, and its implementation has experienced a large development in the last decades, especially for field crops.
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