Some pathogens and eggs of pear trees parasitize on dead leaves and overwinters. It is necessary to clean the debris in the pear orchard and burn them in a concentrated manner to eliminate overwintering pathogens and eggs. At the same time, change the soil and fertilize the old soil at the base of the pear tree to see the roots and cut off the roots. Sprinkle the roots and rot, and then replace them with new soil to prevent root rot. Then, under the canopy, ring-shaped, radial, and strip-shaped fertilization methods were applied to farmyard manure, phosphate fertilizer, and potash fertilizer, and appropriate nitrogen fertilizers were applied. In the end, the park was turned over to use the natural conditions of low temperature and drought in winter to turn the overwintered pests in the soil and freeze them to death or be eaten by birds. The depth of the garden should be 20-25 cm, and it is good to advance in soil freezing. Gardening can not only eliminate overwintering pests, but also improve soil physical and chemical properties, improve soil structure, and improve the ability of pear orchard soils to retain water and maintain water in winter. Anchovy Fish Anchovy Fish,Frozen Anchovies,Raw Anchovies,Flat Anchovies ZHEJIANG EVERNEW SEAFOOD CO.,LTD , https://www.evernewseafood.com