Forestry pest control device

The invention relates to the field of forestry devices, in particular to a forestry pest control device which comprises a pest killing box body. A cover body is supported and fixed to the upper portion of the pest killing box body through a plurality of supporting pipes distributed in the circumferential direction, a trap lamp is installed at the inner top of the cover body, and a pest receiving base is detachably installed at the lower end of the pest killing box body; an inner cavity of the pest receiving base is a pest collecting cavity, a pest blocking net plate is installed in the pest collecting cavity, a plurality of exhaust holes communicated with the pest collecting cavity at the lower side of the pest blocking net plate are formed in the side wall of the pest receiving base, a conical guide cavity is formed in the middle of the top of the pest killing box body, an annular liquid storage cavity is formed in the outer side of the conical guide cavity, and an air draft cavity isformed in the lower side