Abstract: An aqueous composition for preserving wood and wood materials comprising a fungicide selected from the group consisting of 1-[[2-(,4dichlorophenyl-4-propyl-1,3-dioxolan-2-yl]methyl]-1H-1,2,4- triazole, (common name propiconazol) and .alpha.-[[2-(4-chlorophenyl)ethyl]-.alpha.-(1,1-dimethylethyl)-1H-1,2,4-tr iazol-1-ethanol; a fungicidal carbamate; namely 3-iodo-2-propynylbutyl carbamate or methyl benzimidazol-2-ylcarbamate; a stabilizer, 2,2,4-trimethyl-1,3-pentadiol monoisobutyrate, and a diluent. The composition can optionally comprise an insecticide, an emulsifier, a wetting agent and an organic-chemical binder or fixing agent.