The Invention relates to the use of an oil emulsion for treating acaricide, insecticide and Fungicide of stems and leaves of a Plant during their growth in Confined Spaces of Intensive cultivation, characterized in that the water and oil emulsion includes a End Obtained from Oil and has a Boiling Point of 200 to 450 C CA viscosity of not more than 20 mm2 \/ s to 40 degrees C, and not a waste of sulphonated content not less than 99% according to ASTM Standard d483 also includes at least 20% by weight of aftenos mono - and polycyclic paraffin oil, that will be introduced as a stable i emulsifiable concentrate Includes waterLa invencion se refiere al uso de una emulsion de aceite para el tratamiento acaricida, insecticida, y fungicida de tallos y de hojas de una planta durante el crecimiento de los mismos en espacios de cultivo confinados intensivos, caracterizado porque la emulsion incluye agua y un aceite de parafina obtenido a partir de petroleo y que tiene un punto de ebullicion de 200° C a 450° C, una viscosidad de no mas de 20 mm²/s a 40° C, y un contenido de residuos no sulfonados de no menos de 99% de acuerdo con el estandar ASTM D483, ademas incluye al menos 20% en peso de aftenos mono- o policiclico, dicho aceite parafinico se introducira como un concentrado emulsionable estable que incluye agua