A device containing ingredients that are active against plants.

Abstract

The invention relates to a composition comprising - at least one biocompatible copolyester, obtainable by the polycondensation of a diacid and glycerol, with a number-average molar mass in the range of 1000 g / mol to 10000 g / mol, the biocompatible copolyester being selected from copolyesters of glycerol and a (C3-C2o)alkyl dicarboxylic acid, - from 8% to 40% by weight of the total weight of the composition of a wood flour and - at least 10% by weight of the total weight of the composition of an aqueous solution of at least one active phytosanitary principle and / or a biostimulant. This composition is particularly suitable for treating plants by application to the trunk of trees or shrubs, especially those chosen from the group consisting of rubber trees, vines, olive trees, fruit trees and ornamental plants, preferably rubber trees.