This year, the climate in our district is abnormal. It is high in the middle and late March. The temperature difference between the temperature and the temperature in the first half of April is large. The rainfall is more than that in the same period of last year. The fruit trees are flowering, and the temperature is low and once in April 6-12. Rainfall has a serious impact on the normal pollination of apples. The frost area is large and the freezing damage is serious. It will also cause apple heart disease and flower rot, and affect the quality and yield of apples. Mildew disease is spread by airflow, and it is infiltrated by rain, mist and dew. From the flowering stage of apple to the growth stage of fruit, it can invade the ventricle through flower, stigma and tube. Mainly with apple flowering period, the flower infection rate is the highest, the fruit setting rate is second, the young fruit expansion period is again, and the best period for preventing and curing mildew disease is at the end of the flowering stage and the initial stage of fruit setting. In order to control the occurrence of the disease, the fruit farmers combined with the first use of Xiehua to grasp the prevention and control of apple mildew. The agent is sprayed with any one of 10% polymycin-resistant 1000 times solution, 4% agricultural anti-120, or 80 must-have WP 800 times solution, or 50% carbendazim suspension 800 times solution. Spray 2-3 times according to the specific situation. In addition, the spraying of 0.4% calcium nitrate + 0.3% borax 2-3 times in the growth period can also reduce the rate of heart decay in the harvesting period. Matters needing attention: 1, apple mold heart disease, flower rot disease are flowering infection diseases, spraying after the flowering period is basically invalid, so it must be sprayed at the end of the flower. 2, the flowering period is sensitive to the drug, must be cautious when dispensing, can not freely expand or reduce the concentration of the drug, do not add other drugs. 3. When spraying, use three nozzles to pick high spray, the atomization must be uniform, and the effect on the fruit setting rate should be minimized. Do not use the spray gun. Reno Mattress,Reno Mattress Box Gabion,Gabion Baskets,Gabion Wall Mesh ANPING HONGYU WIREMESH CO.,LTD , https://www.hongyufence.com