Fecha de publicación: 25/10/2019 Fuente: WIPO "tobacco agriculture" The utility model discloses a simple trap capable of collecting rainwater and supplementing water in a self-service mode. The device comprises a trapping bottle made of a waste plastic bottle, the trapping bottle comprises a bottle opening and a bottle body, wherein the bottle opening and the bottle body are of an integrated structure. A plurality of insect trapping holes are formed in the bottlebody; a rainwater collecting funnel communicated with the interior of the bottle body is arranged at a bottle opening of the trapping bottle; the rainwater collecting funnel is made of one end, with abottle opening, of a waste plastic bottle; the bottle cap is fixedly connected to a bottle opening of the trapping bottle in an inverted manner; the design and manufacture are simple, the simple trapis simple in structure, low in cost, capable of achieving self-service water supplementing, time saving, labor saving and labor cost saving of the trapping bottle, ideal in using effect, capable of improving the insect killing efficiency to the maximum extent, capable of improving the insect killing rate by 30%-40% compared with an existing simple trap, capable of achieving the purposes of reducing labor and cost in modern tobacco agricultural construction, high in practicability and high in generalization performance.