Abstract: The invention relates to a method for the preventive protection of materials against pests permanently and/or temporarily living in the soil, in particular, termites. One or more barriers of sharp-edged inert particles of a particle size screened at from 0.001 to 30 mm and/or spherical inert particles having a diameter of 0.5 to 5.0 mm are arranged around and/or in the object to be protected.

Abstract: The present invention relates to a composition for use as an agent or concentrate for the preservation of wood and wood materials, which comprises 0.05 to 25% by weight of a 1-aryl-3-hydroxy -3-alkyl-4-(1,2,4-triazol-1-yl)-butane derivative and 0.002-5% by weight of a pyrethroid insecticide comprising cyano-(4-fluoro-3-phenoxyphenyl) -methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate, (.+-.).alpha.-cyano-3-phenoxybenzyl (.+-.)-cis,trans-3-(2,2-dichlorovinyl)-2,2 -dimethylcyclopropanecarboxylate, (S).alpha.-cyano-3-phenoxybenzyl (1R,3R)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxylate or 3-phenoxybenzyl (.+-.)-cis,trans-3-(2,2-di-chlorovinyl)-2,2-dimethylcyclopropanecarboxylat e or enantiomeric compounds thereof and more than 40% by weight of a solvent and/or diluent as well as, if appropriate, an organic chemical binder and/or fixing agent, processing aids, dye, pigment, dye mixture or pigment mixture.

Abstract: The invention relates to a method for the preventive protection of materials against pests permanently and/or temporarily living in the soil, in particular, termites. One or more barriers of sharp-edged inert particles of a particle size screened at from 0.001 to 30 mm and/or spherical inert particles having a diameter of 0.5 to 5.0 mm are arranged around and/or in the object to be protected.