A device (1) for eliminating parasites in an Arecacea (20) is provided for comprising: a tank (2) for pest control fluid, at least one distribution duct (3), fitted with at least one nozzle (3a) suitable to convey the pest control fluid in correspondence with said top (22) of the Arecacea (20), a supply duct (4), directly connected to the tank (2), a manifold (5), positioned in correspondence with the top (22) and connected to said a distribution duct (3) and to the supply duct (4) an attachment (6) positioned between the tank (2) and the manifold (5) connection means (7) of an integral nature of the manifold (5) and the distribution duct (3) to the Arecacea (20) channelling means (2a) of the pest control fluid from the tank (2) to the nozzle (3a).
