The Invention provides a Composition and a nematicide method using Said composition for Control of nematode pathogens in plants.The composition comprises as active oligomers derived from monomers of gallic acid, quinic acid, caffeic acid and methylated Derivatives of them it also contains carbohydrates, Hydrocolloids, proteins and soluble agronomically acceptable excipients.The Method for the control of nematodes includes the application of the nematicide composition in infected crops in dose and at appropriate intervalsLa invencion proporciona una composicion nematicida y un metodo que utiliza dicha composicion para el control de nematodos patogenos presentes en plantas. Dicha composicion comprende como principios activos oligomeros derivados de monomeros de acido galico, acido quinico, acido cafeico y derivados metilados de los mismos ademas contiene hidrocoloides, carbohidratos, proteinas hidrosolubles y excipientes agronomicamente aceptables. El metodo para el control de nematodos comprende la aplicacion de la composicion nematicida en los cultivos infectados en dosis y a intervalos de tiempo apropiados