| 摘要 |
<p>In a crawling insect trap comprising an upper surface, a bottom surface and side walls, having an opening in said upper surface leading to the interior of said crawling insect trap, a layer of glue within said trap covering at least a portion of said bottom surface, and an inwardly sloping ramp, having an angle of inclination, asmeasured from a plane parallel to said bottom surface, of from about 5.degree. to 10.degree., coterminous with an inwardly sloping decline having a final angle of elevation, as measured from a plane parallel to said bottom surface, of from 10.degree. to 90.degree., covered with at least a particulate material, which will come loose when walked upon by a crawling insect causing the insect to fall through said opening into said trap and to be held fast therein by said layer of glue.</p> |
