Answer: After jujube deciduous, the jujube garden is thoroughly cleaned, defoliants, residual fruits, mixed fruits, and pest branches and dead branches cut off during pruning are cleaned and burned or buried deeply. Before the overwintering larvae are under the tree, the rough bark of 10-15 cm wide is scraped off at the base of the trunk, and the firewood apron is tied in order to prevent and attract the overwintering pests, such as carnivora, to lay eggs. Before the adult lays eggs, the coarse skin on the trunk of the jujube is scraped off to expose the red endothelium and feel smooth. Then, the proportion of water is 10 parts, 3 parts of quicklime, 0.5 parts of lime sulfur stock solution, and a little white coating solution of oil and grease is coated on the white trunk. In addition, we must also block old tree holes to reduce the growth of pests and diseases. We can use 10 parts of mastic and 3 pieces of wheat straw, add a little insecticide, block the tree holes with water and slurry, and seal off the overwintering insects.
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