Trapping and killing device of lepidoptera adult pests

The utility model relates to a trapping and killing device of lepidoptera adult pests and belongs to the field of agricultural technologies. The trapping and killing device comprises a suspension mechanism, a bait box, a replenisher bottle, a connection tube, a plurality of capillary tubes, a floater, a cork, a connection line and a spring. The top of the replenisher bottle is connected with the suspension mechanism, and the bait box is communicated with the replenisher bottle through the connection tube. The bait box is provided with the capillary tubes, and the capillary tubes do not make contact with the liquid level of the bait box. The floater is arranged on the liquid level of the bait box, and the cork is arranged inside the replenisher bottle. One end of the cork penetrates through the connection tube through the connection line and then is connected with the floater, and the other end of the cork is connected with the spring fixed to the top end of the replenisher bottle through the connection line. The trapping and killing device of the lepidoptera adult pests is reasonable in structure and low in cost, reduces distribution of pesticides in the whole environment and effectively controls harm of the lepidoptera adult pests.