Automatic monitoring and early warning device for grassland insect pests

The invention belongs to the technical field of pest and disease damage detection, and discloses a grassland pest automatic monitoring and early warning device, which comprises a frame body and an early warning main body, the early warning main body comprises a shell, a trapping lamp arranged in the shell, an insect killer, a photographing system, a transmission module and a power supply, the photographing system is connected with the transmission module through a circuit, and the device also comprises a heat dissipation part, the heat dissipation part comprises two heat dissipation cylinders with one ends closed, driving plates are slidably connected into the heat dissipation cylinders, driving rods are arranged on the driving plates, and the heat dissipation part further comprises driving pieces for driving the driving rods to move. The heat dissipation barrels are provided with air inlets and air outlets, air inlet one-way valves are arranged in the air inlets, air outlet one-way valves are arranged in the