Many fruit orchards in Uruguay are small-scale producers, where a single sprayer is configured once a year and used for all the applications of the phytosanitary products. An adaptable system which can be used with common sprayer already in the orchards, capable of determining the Tree Row Volume (TRV) in real time and reducing the amount of product would be a solution to reduce phytosanitary application at a reduced cost. LIDAR (Light Detection and Ranging) technology can be used to measure length in the farm environment and has had a huge reduction in cost in the last few years, mainly for its use in autonomous cars. A prototype system was designed and its currently being tested in the field.