| 摘要 |
The trap comprises optical attractants for luring the flying insects in the form of vertically arranged strips (15) of which the ratio of the sides is greater than 4:1. The trap base (3) and the layer of adhesive located thereon are both transparent. The trap itself is a delta trap in which the roof slopes (2, 4) reduce the amount of dust falling onto the adhesive. On both sides of the triangular openings of the trap the base (3) is extended to form approach surfaces (16). The strips (15) are fastened so as to hang down from the ends of the approach surfaces (16). |
