Automatic insect trapping and killing device for forestry

The invention discloses a forestry automatic insect trapping and killing device which comprises a bottom frame, a bent channel and a containing cavity are formed in the bottom frame, a connecting pass band is installed in the containing cavity, and a net cover cylinder is suitable for being detachably installed at the upper end of the connecting pass band; the net cover cylinder comprises an inverted cone part and a cylinder part, an insulating support is arranged in the center of the net cover cylinder, a trap lamp is installed in the insulating support, a first power grid is installed outside the trap lamp, a second power grid is installed in the net cover cylinder along the surface of the inverted cone part, and a power source part is arranged at the bottom of the net cover cylinder. The power supply part is suitable for being in telecommunication connection with the power grid I, the power grid II and the ultraviolet lamp, and the cylinder part is suitable for corresponding insect bodies to pass through;