the surface of the grating structure 22 g and or project into the surface of the grating structure 22 g the raised portions or recesses are of a random height and a random configuration in which respect for the sake of better illustration fig2 shows only the raised portions and recesses which are in the section plane the raised portions or recesses of the nanostructures 22 n are therefore not rib shaped raised portions or groove shaped recesses but raised portions and recesses which are distributed randomly over the entire surface of the grating structure 22 g and which are formed randomly and which are approximately conical fig3 now shows an adhesive strip 3 including an adhesive layer 33 a carrier layer 32 the above described insect repellent layer 20 see fig2 and a protection layer 31 the protection layer 31 covers the function determining surface structure see fig2 of the insect repellent layer 20 and protects it from damage and or contamination until it is used the protection layer 31 is preferably a water soluble protection layer which can be washed off for example by the action of rain the underside of the insect repellent layer 20 is connected to the carrier layer 32 which in the illustrated embodiment is in the form of a pvc film of a thickness of between 12 and 35 u03bcm the carrier layer 32 imparts sufficient strength to the adhesive strip 3 to fix.