Agricultural pesticide application device for preventing and treating diseases and insect pests

The utility model belongs to the technical field of agriculture, and discloses an agricultural pesticide application device for preventing and controlling diseases and insect pests, which comprises a vehicle plate with the lower end connected with universal wheels, a spraying device connected to the vehicle plate, a stirring box connected to the top of the spraying device, a stirring chamber arranged on the stirring box, and a water inlet and a pesticide inlet arranged on the stirring box. A first stepping motor with a stirring rod arranged at the output end is fixedly arranged at the top of the stirring box, the stirring rod is connected to the inner side of the stirring cavity, a liquid outlet switch is connected to the bottom of the stirring box, a solution cavity is formed in the spraying device and connected with a liquid outlet water pump and a liquid outlet pipe through pipes, and arc-shaped discs are arranged on the two sides of the spraying device. The liquid outlet pipe is arranged between the arc-s