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One, buckwheat leaves plus wild chrysanthemum pest control law. Take buckwheat leaves washed and dried, crush them and mix them with 5% of wild chrysanthemums according to a 95% ratio; then use 200 grams of food per 500 kilograms of food, spread them in layers on the grain piles, and finally sprinkle some more in the uppermost layer. You can keep food from pests. Second, Yang leaves plus Camellia pest control law. Fresh poplar leaves and camellia leaves are used to cover the surface of the grain, and then three layers of newspapers are used to seal the mouth of the container. After sealing for 3-4 days, the eggs in the grain can be killed. Third, the cubed plus ginger powder pest control method. After the stalks of dried bamboos were added, the ginger powder was mixed in equal amounts, wrapped in gauze, 200 grams per packet, and 4 packets per 500 grams of grain. The pest control effect was very significant. Fourth, crab shell and ginger pest control law. The collected crab shells were washed and dried, and dried ginger pieces were added in appropriate amounts, and evenly mixed in the grain for storage. There was no smell, and good insect repellent and insecticidal effects were obtained. V. Kelp pest control law. The dried seaweed is mixed in the grain at a ratio of 1:100. After one week, kelp can absorb some of the water in the grain, kill the whitefly and moth pests, and kill a variety of molds. After the seaweed is taken out and dried, it can be reused without affecting its food value. Sixth, pine wood pest control law. Take pinewood wood containing more turpentine and chop it into small pieces of finger size, evenly bury it in the grain, and then seal and store it to effectively prevent insects. Seventh, the iris wormwood pest control method. Take fresh calamus and wormwood, wash and dry, each 500 kilograms of food, respectively, according to the upper, middle and lower store three layers, you can achieve insecticide, insecticide effect. Eight, stinky leaf pest control method. Fresh skunk leaves are washed, dried and chopped, and 2.5 kg of leaves per 500 kg of food are stored in sealed form, free of pests. When food is released, the broken leaves must be screened before processing. Nine, "three powder" mixture pest control method. Take dried tangerine peel powder, star anise powder, red pepper powder equal amount mixed, wrapped with gauze, each package weighs 100 grams, according to every 500 kilograms of food evenly put 5 bags, sealed storage, drive, kill insect pests. Ten, "four powder" mixture pest control method. Take pepper powder, fennel powder, ginger powder, and garlic powder in equal amounts and then mix them with gauze. Each pack contains 100 grams. Evenly packing 5 packets per 500 kilograms of grain can achieve insect repellent and anti-caries effects.