1, the yellow board induces. Winged crickets have strong tropism towards yellow and orange yellow and can be stalked and killed by yellow plates coated with mucus such as engine oil No.10. The size of the yellow plate is generally 15-20 cm square, inserted or hung on the vegetable line and is even with the vegetables. 2, silver gray film to avoid. Silver gray has a strong deterrent effect on locusts. Silver ash plastic strips can be hung in fields or vegetables can be covered with silver gray mulch. Prevention and control of autumn cabbage aphids, can be taken immediately after sowing cabbage 0.5 meters high arch shed, every 0.3 meters vertical and horizontal pull a silver-gray plastic film, covering about 18 days. 3, washing powder wipe out. The main ingredient of laundry detergent is sodium dodecyl benzene sulfonate, which has a strong contact effect on locusts. Therefore, 400-500 times liquid detergent can be used to kill maggots, 60-80 kilograms per acre liquid, even spray 2-3 times. 4, the plant destroyed. 1 ground tobacco into fine powder, add a small amount of lime powder to spread; 2 pepper or wild rice soaked in water for a day and night, filtered and sprayed; 3 ramie leaves after smashing, or with water, dip 1:2, cook for 10 minutes After the filter spray; 4 peach leaves immersed in water overnight, plus a small amount of quicklime filtration. 5, plant drive flooding. Volatile odors of leeks have a repellent effect on locusts. If they are planted with other vegetables, they can reduce the density of locusts and reduce the damage of locusts to vegetables. 6, eliminate the source of insects. Grubs, pomegranates, and dried grasses near vegetable fields, and stubble leaves of vegetables after harvest are all the major wintering hosts of locusts. Therefore, it is necessary to thoroughly remove weeds in the vegetable fields before winter, winter, and spring, or in early spring. The use of pesticides such as clogs and pomegranates is controlled. 7, protect natural enemies. The natural enemies of locusts are the seven-spot ladybugs, grasshoppers, and food flies. They should be protected and used.
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