Patent ID: 8061377

Claim:
An insecticidal barrier having an upper part and a lower part, the upper part comprising an insecticidal net with a mesh size preventing selected insects, for example mosquitoes, to traverse the barrier, the lower part extending up to a height of more than 40 cm from the lower edge of the barrier, the lower part comprising an insecticidal material, said insecticidal material being selected from the group consisting of a tarpaulin, foil, woven fabric, knitted fabric, non-woven fabric, and net with a net material having a higher tear strength or bursting strength than the net of the upper part, or a combination of these, wherein either the upper part has a first content of insecticide and the lower part has a second content of insecticide, and wherein the second content of insecticide is higher than the first content, or the upper part has a first content of a first insecticide and the lower part has a second content of a second insecticide, the second insecticide being different from the first insecticide, wherein the second content multiplied by the ratio between the efficiency of the second insecticide and the efficiency of the first insecticide is higher than the first content.