What diseases and insect pests should be controlled in planting cherry blossoms?

What diseases and insect pests should be controlled in planting cherry blossoms? Please introduce the following diseases and insect pests to control cherry blossoms: disease control cherry leaves are vulnerable to diseases such as powdery mildew, brown spot, coal fouling, gum disease and root nodule disease. if the control is not timely, it will cause the leaves to fall off prematurely and affect the accumulation of nutrients, which is disadvantageous to blooming next year. For powdery mildew, brown spot and coal fouling disease, 1000-1500 solution of shark, 1000-fold solution of methyl topiramate and 1000-fold solution of 65% Dessen zinc wettable powder can be sprayed every 15 days. Gummy disease is caused by moths drilling into tree trunks to lay eggs, which can be dug out with sharp knives, improve the soil and strengthen the management of water and fertilizer. Root nodule disease can cause the roots of diseased trees to fail to grow normally. No matter how much fertilizer is applied, the tree is still not strong. It is necessary to remove the tumor in time, carry out soil disinfection, and use rotten leaf soil, charcoal powder and microorganisms to improve the soil. The main pests harmful to cherry trees by pest control are aphids, red spiders and shell insects. Prevention should be given priority to, spraying 3 to 4 times a year, the first before anthesis, the second after anthesis, and the third from July to August. Try to avoid the use of dichlorvos so as not to cause fallen leaves. Properly watering and increasing foliar spraying (0.3% to 0.5% urea, 0.3% potassium dihydrogen phosphate) to ensure that the leaves are intact, thick and green. Click for more cherry blossom planting techniques click to get more flower planting techniques