As the saying goes: "scrape the bark, more knot pear." The scraping of fruit trees is an important measure for orchard management in winter. It not only helps to increase tree vigor, prevents premature aging of trees, but also eliminates pathogens and pests that overwinter in bark cracks, reduces the overwintering base number, and controls or reduces some of the coming year. The occurrence and damage of pests and diseases led to the prevention and control of “no pesticides and pesticidesâ€. Comprehensive surveys have revealed that 80% to 90% of overwintering larvae have been reduced in scraped orchards, larvae, and pear caterpillars, 60% to 80% in apple carapace and pear carps, and 70% to 80% in red spider mites.
The winter shave of fruit trees can be carried out after defoliating from fruit trees to before sprouting in late spring. The main reason is to scrape off the rough skin and skins on the trunk and main branches. The degree of scraping is to scrape off the light brown skin. It is better to see green and white. When scraping the skin, a plastic cloth should be laid under the tree to collect scraped bark and debris, and be deeply buried or burned. For fruit trees with rot and blight disease, apply Fumei arsenic or lime sulfur to prevent and cure after scraping.
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