Scrape bark in the rough skin, cracks and cracks in fruit trees, often hidden in the pit apple borer, apple leaf roller moth, date tapeworm, pear caterpillar and other pests. Before the sprouting of the fruit trees in early spring, the rough skin and slashing kerfs on the branches (especially in the tree shrews) are completely scraped off, and a large number of overwintering pests can be eliminated. It is advisable to scrape off the light-brown skin and see the green is not white. When scraping the skin, lay a plastic sheet under the tree to collect the scraped bark and debris and concentrate it deeply or burn it. For fruit trees with rot and blight, apply lime sulfur after scraping.
Shaving the trees in the early spring is not only an important measure to improve the soil and promote the production of fruit trees, but also an effective method to eliminate overwintering pests. Through deep plowing, pests (such as peach borer, peach aphid, etc.) and pathogens that overwinter in the soil can be turned to the surface and frozen to death, dried or eaten by natural enemies, causing some litter on the ground and weeds. The bacteria and pests in the middle of winter were suffocated when they were buried underground.
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