Abstract
Herbicide Spot Spraying (PLH, Pulverização Localizada de Herbicidas) using remote imaging, performed by low-cost drone, represents an innovative method in Agriculture 4.0. It enables the identification of areas with the highest weed infestation, allowing for targeted herbicide application in strategic locations. This approach reduces both the quantity of herbicides applied and their associated ecological and economic impacts. Therefore, this study aimed to assess the impact of PLH through remote sensing with low-cost drones on weed control. It was based on an systematic review following the Prisma statement, that analyzed the evolution of remote sensing in agriculture, the economic and environmental impacts, drone imaging technology and future prospects. In total, 26 works were selected, most literature focused in field monitoring by drones for weed control than for herbicide pulverization. Based in the synthesis of the existing literature through the PLH it is possible to reduce the quantity and volume of herbicide applications performed in the harvest, with greater efficiency and agility in controlling weeds, since, currently, the control of these invaders represents one of the most important challenges for agriculture, as these plants adapt quickly, developing resistance to new herbicide molecules, reducing productivity, contaminating food, reducing its quality, and consequently, raising final production costs.
Localized spraying; Weed; Drone; Spot spraying
Thumbnail
Thumbnail
Source: Based on Page et al. (2020), with adaptations
