Patent ID: 7793920

Claim:
A fencing for preventing low-flying insects from entering an open air area comprising a substantially upright structure at least partly surrounding said area, said structure having a height suitable for preventing the low-flying insects from entering said open-air area, wherein at least part of said structure is provided with an insecticide transferable to said low flying insects touching said at least part of said structure, wherein said insecticide is provided within said at least part of said structure by impregnating or incorporating said insecticide in a material of said at least part of said structure for gradual migration of said insecticide from an interior of said at least part of said structure through the material to surfaces of said at least part of said structure for long lasting insecticidal efficiency of said at least part of said structure, wherein said insecticide is selected from the group consisting of a pyrethroid based insecticide, an organophosphorus based insecticide, a carbamate based insecticide, an insecticide affecting ticks or mites, an insecticide with a sterilizing effect or growth regulating effect on insects or acarides, and combinations thereof.