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One of the guarantee of crop yield is pest control. Spodoptera frugiperda is harmful to crops, especially to corn. Farmers generally use traditional chemical control, which is easy to produce environmental pollution. The prevention and control method of light lure supplemented by sex lure and food lure has little environmental pollution, and the lure core can be replaced, which makes the device sustainable use. The use of acrylic materials and solar panels minimizes the cost and is more conducive to popularization. The fixed pulley and rope were used to adjust the height of the trap to ensure that it was always higher than the corn canopy.