Qingyuan is an important task in the management of jujube trees. It can effectively eliminate overwintering eggs, pests and various germs, and reduce the damage of pests to jujube trees. Spring jujube clear garden mainly do the following work: 1. Scrape the bark. The main purpose of scraping the bark is to control various pathogens and pests that overwinter in the bark seam. The main insect pests controlled by this method include jujube tree spider mites, nail beetles, date wax turtles, jujube mealybugs, and red edge beetles; the main diseases include ringworm disease and anthrax. At the same time scraping bark can also promote the metabolism of the tree, which is conducive to the normal development of the jujube tree. The time for scraping the bark is better when the spring temperature starts to rise. When the bark is scraped, the main skin and the main branch are mainly scraped off by the rough skin and the curling skin. The scraping is too light to function. The scraping is too heavy to easily affect and destroy the xylem and the formation layer of the tree. Generally, the trunk is not grasped. Lubai is appropriate. Remember to bring all scraped skins out of the park and focus on destruction. 2. Pick up pests and fruits and destroy them centrally. The bad dates left on the ground are mostly bugs and dates, which contain a large number of pests (eggs) and pathogens. The fallen leaves are also pests and leaves (date rust, etc.). In the fall, there are no picks to bring these pests and diseases in the early spring. The leaves are cleared in time and brought out of the park to be destroyed to prevent germs or eggs from re-infestation. 3. Spray the medicament. Spraying lime sulfur before jujube germination can eliminate some of the wintering pests and pathogens; Spray 30% dragonfly Fulian suspension 400 to 600 times, 77% Daning wettable powder 300 to 400 times, 60% Tongjia wettable powder 300 to 400 times the liquid, while adding 20% ​​faster Ling 1000 times, can effectively eliminate the tree winter fungus and overwintering pests. Cup Coaster,Cup Coaster Healcier,Diatomite Cup Coaster,Cup Coaster Skin Care Dongguan Vanilla Bioengineering Co., Ltd. , https://www.healthecigarette.de