Autumn and winter methods for controlling fruit tree pests and diseases

1. Clear. After defoliating, the fruit trees will be cleaned of stubs, smashed leaves and weeds in the orchard and used as high-temperature manure or fuel for burning. Can kill a large number of orchard pests and diseases, significantly reduce the incidence of pests and diseases in the next year.

2. Plowing. Ploughing orchards after plowing can change the wintering environment of pests, turning pests that crouch on the surface overwintering to death and suffocating them underground. Pests that crouching in the ground and wintering are turned to dry on the surface.

3. Cut. Combine the winter cuts of fruit trees, cut sick branches and worm branches, and remove fruit bags and stagnation fruits that remain on the fruit trees, and then focus on incineration to eliminate a large number of wintering pests and diseases of fruit trees.

4. Scraping. As the saying goes: "Skin winter, eat pears," which fully illustrates the importance of winter scraping the bark of fruit trees. By scraping the bark of fruit trees in winter, the pests and diseases hidden in the old skin and tear skin of fruit trees can be removed.

5. Spray. Spraying lime sulfur 2 to 3 degrees once after entering winter can effectively kill overwintering diseases and pests of fruit trees, especially for orchards with serious pests and diseases, and the control effect is more obvious.