When apple enters mature stage, pests and diseases in leaves are no longer the focus of prevention and control. The focus of prevention and control is fruit diseases and pests. The focus of this period is apple ringworm disease, anthrax, apple tree rot, peach fruit moth, Daqingye. 1. Prevent disease. Apple ringworm disease generally reaches the peak of onset within 30 days of apple fruit ripening or storage; apple anthracnose usually occurs at the late stage of fruit growth. In order to prevent apple from rot and loss after harvest, especially late-maturing apple varieties, a fungicide can be sprayed 15-20 days before harvest. The agent can be mixed with 1% boricin 400 times and 40% Fuxing 8000 times or 80% pewter or Dasheng M-45 WP 1000 times. Can also be used 70% thiophanate-methyl 800 times, 40% carbendazim 600 times, 27.12% copper noble suspension agent 500-700 times, 77% can be killed, 70% mancozeb 600-800 times Liquid control. 2. Control pests. 1 scraping clean garden. Thoroughly clean the leaves, scrape branches and rough skin, promptly remove dead fruits, diseased branches, and diseased leaves on the trees, centrally burn or bury them deeply, and eliminate overwintering bacteria and insect sources. The most common pests of Hawthorn leafhoppers, Tetranychus urticae, Pyrosphaeridae, and leaf roller moth are mostly overwintering in the rough skin, cracks, and cracks of fruit trees. If they can meticulously and thoroughly scrape rough and scaly skin, they can kill 50% to 90% of the total. Overwintering pests. 2 Sand, kill peach fruit moth. In the apple orchard where the pests are heavy, after the fruit is harvested, a layer of 3 cm thick sand is laid on the ground where the apples are piled, and the larvae are deprived of fruit to make oysters. After the apples are removed, the sand and insects are screened and burnt together. . 3 bound the grass to kill overwintering pests. From September to October, pests such as Hawthorn leafhoppers, cotton brown strip moths, spiny leaf miners and other pests continue to climb through the trees. They can use the hay to twist into softer grass and straw ropes before the trees are destroyed. The trunk, main branch, and lateral branches are lapped 4-5 times. The big apple trees born in 10-15 years are tied in the middle of the three main branches. The older the tree ages, the more the tying grass parts move upwards. In winter or early spring, the grass handles are burned and destroyed, and most of the pests hidden in the cracks in the bark can be eliminated. 4 In addition to cutting off pests and diseases, the larvae that drilled into the trunk of the apple during wintering should be removed, and 80% of the cotton soaked with 100 times liquid of dichlorvos plus water or saturated mud can be stuffed into the insect crossing to kill. Tianniu and other larvae. 5 trunk white. Take 2.5 kg of lime, 0.5 kg of lime sulfur stock solution, 0.5 kg of salt, 50 g of animal oil, and 9 kg of clear water. When preparing, quicklime and salt are separately heated with hot water, then the two liquids are mixed and stirred thoroughly. Animal oil and lime sulfur are then added. After mixing, white trunks can be brushed to kill the eggs. It is better to apply whitening time twice, the first time after defoliation and before freezing. The second time in the early spring, the main trunk, main branch, and larger secondary branches and lateral branches were protected. Uv Spot Curing Light,Uv Spot Lamp,Uv Spot Curing,Uv Curing Spot Lamp Rolence Enterprise Inc. , https://www.rolencedent.com