Farmland lepidoptera pest and corn borer larva attractant attraction killing device

The invention discloses a farmland lepidoptera pest and corn borer larva attractant attraction killing device, and belongs to the technical field of plant protection. The device comprises a trapping and killing ring (1), tail end plugs (14), a bayonet (15) and fixing lacings (16). The device is characterized in that the trapping and killing ring (1) is in the shape of a circular ring, one notch inthe trapping and killing ring is called the bayonet (15), the tail end plugs (14) are arranged on two sides of the bayonet, one fixing lacing (16) is arranged on the outer side of each tail end plug(14), corn stalks are fastened in a knotted mode by the fixing lacings (16) after the corn stalks are clamped, and the trapping and killing ring (1) can be firmly fixed onto the corn stalks, is made of plastics, rubber or fibers and comprises an attractant storage bag (2), a pest return collar (3), killing liquid (4), a trapping and killing ring cavity (5), a pest inlet (6), an escape stopping projection (7) and a plant ca