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€. 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 following points should be noted when scraping the skin.
It was actually wrong for most people to think that the sooner the scraping of the rind from the fallen leaves to the flowering, the earlier it would be wrong, because it takes several months before the leaves fall to flowering. On the one hand, the early peeling of the skin is due to the exposure of the young tissue, and the wind blows the day. The loss of moisture in the sun, on the other hand, is equivalent to the removal of a layer of clothing, and the ability to resist coldness is significantly reduced. Therefore, it is advisable to scrape the skin prior to the emergence of the insects before germination.
To change the depth to the shallow person to face the tree to hide, a considerable part of the fruit grower is too deep and too heavy, so that the fresh disease-free protection organization is seriously damaged, affecting the normal growth of the tree, so the depth to just scrape the body and knock off the skin Appropriately, the trees are white, the trees are green, and the disease-free body is not scratched.
Change the thickness to not only scratch the trunk, the main branch on the presbyopic disease body, on the branches above the age should also be carefully observed, do not miss a small tumor, because mung bean size tumors can produce hundreds of millions of colonies, the overall After the scraping of the trees, they must be carefully examined again and again to achieve the purpose of completely scraping.
Change the belt to be covered with a plastic sheet or chemical fertilizer bag under the tree to collect the epidermis. Be careful not to throw it on the edge of the orchard or burn it. Because the bacteria thrown in the garden can continue to spread along with the flow of water, burning up waste of nutrients, it is better to dig more than 30 cm deep in the orchard and bury the fallen leaves together with the tree. After rotting it is Better nutrition.
After the old skin is changed to a new one, it is not appropriate to apply or spray Fujim arsenic, which has been effective in the past, and has high residual and high pathogenicity. It can be used as a 5 times solution of pollution-free biopesticides or as a non-polluting chemical. Brushing and spraying of gums, biofilms, etc., in particular, gum tree, and biofilms are applied on the tree to form a film. The bacteria are not easy to invade and infect, and the moisture of the tree is not easily lost.
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