Fecha de publicación: 02/02/2021 Fuente: Wipo Tobacco Agriculture The invention discloses a pre-flue-curing tobacco leaf treatment method for reducing pesticide residues of flue-cured tobaccos. The method specifically comprises the steps: (1), harvesting ripe freshflue-cured tobacco leaves; (2), under the conditions of shading and normal temperature, spreading the harvested tobacco leaves on the floor, spraying alcohol with the concentration of 60-80% to the surfaces of the tobacco leaves by using a sprinkling can until the alcohol drips from the surfaces of the tobacco leaves, naturally airing the tobacco leaves, and repeatedly treating the tobacco leavesby using the alcohol for 2-7 times; and (3), airing the tobacco leaves treated in the step (2), weaving rods, and loading the woven tobacco leaves into a curing barn. According to the method, throughthe pretreatment process of spraying alcohol before tobacco leaf curing, the pesticide residue of tobacco leaves is effectively reduced, and the quality of cured tobacco leaves is improved; the methodis simple and easy to operate, other chemical reagents or pesticide degradation agents do not need to be additionally added, and the problem of reagent residues caused by addition of other reagents is solved; the treatment method provided by the invention has good removal effects on different pesticides, the removal effect on dimethachlon is optimal, and the removal rate can reach 92.86%.