First, the use of sweet and sour liquid to kill locusts. The sweet and sour liquid formula is: wine: water: sugar: vinegar = 1:2:3:4. The sweet and sour liquid is placed in a container with an open top end, and it is generally placed in a large number of plant sites where the locust occurs in the evening, and the trapping effect is very significant. Second, the use of yellow plates to kill locusts. Using the chemotaxis of the locusts, the yellow plates were buttered and the locusts were found to be yellow, and they rushed toward the yellow plates one after the other, so that the locusts would stick to the yellow plates. Until a certain number of times, the aphids stuck to the yellow plate can be processed. Third, use willow branches to trap locusts. The locusts have a strong tendency toward the odor emitted by Willow. For this reason, a certain amount of willow branches may be taken and placed in a large number of plant sites where the aphids occur, and a large number of aphids may be trapped together to facilitate concentrated killing. Fourth, the use of black light traps kill locusts. The locusts have a strong phototaxis. For this purpose, the black light is made into a plant site where aphids occur in a large amount, and the trapping effect is extremely significant. Fifth, use natural enemies to control locusts. The use of natural enemies to control locusts is currently a more economical and effective method. The seven-spot ladybug is the natural enemy of the locust. For this reason, a certain amount of seven-spotted ladybugs can be collected and placed on plants that are harmful to the locusts. The effect is very good. Six, the use of vegetation gray water control locusts. The method is to take 10-15 kg of grass ash and 50 kg of water, soak 1 day and night. The supernatant was taken the next day and sprayed on the plants where the aphids occurred. It can kill two birds with one stone. It can effectively control aphids and provide plant nutrition. 7. Use pepper water to control aphids. The method is to take a certain amount of pepper (dried in the sun) and put it in boiling water for 10-15 minutes. After the water is cool, the pepper is filtered out, and then the pepper water is sprayed on the plants harmed by the locust, and can be received immediately. Effect. Eight, the use of foliar spray fertilizer to control locusts. Use 10% ammonium bicarbonate solution, 0.5% ammonia solution, 2% urea solution for extra-root spraying, spraying once every 7 days or so, spraying 2 or 3 times, it is effective for controlling aphids on plants. .