Apple rotten fruit disease mainly includes apple ringworm disease, anthrax disease, disease rot, black rot, brown rot and so on, all of which can cause good fruit to become defective, affecting yield and reducing orchard efficiency. Apple rot pathogens usually infect fruit during young fruit (May-July), then appear latent, and in the autumn near mature period (August-September) form symptoms, followed by a few days. Especially in the late rainy season, conditions of temperature and humidity are prone to outbreaks. Therefore, from now on, every farmer must conscientiously and comprehensively do a good job of ensuring fruit and promoting income. 1. Strengthen the cultivation and management to improve the disease resistance of the tree. From the beginning of August, combine spraying with 3-4 sprays of poly confectionery, high beauty and leaf protection agent, rich potassium and 0.5% potassium dihydrogen phosphate. 10-15 days. Take a good look at the land and use the water; stop ring-cutting and girdling, trim the fall crops in due course, and eliminate the branches and branches of the pests, leggy branches, and branches, and the dense branches and thin branches, to facilitate ventilation; Bags were also removed from some of the fruit, fruits, fruit, malformed fruit, and dried fruit, in order to reduce nutrient consumption, enhance tree vigor and improve the tree's resistance to stress. 2. Scientific selection of drugs for appropriate prevention and control After August-September, it is not only the mature period of middle-late and late-maturing apples, but also the epidemic stage of the burst of germs. At this time, the pesticide should be sprayed according to the weather conditions. Generally no rain or low rainfall, can be carried out according to the conventional; if more rainfall, high temperature and humidity, appropriate shorten the interval, increase the number of applications and pay attention to the use of alternating sterilization and protective fungicides alternately, available for the excellent Fungicides are 68.75% easy to protect 1500 times, 10% World high 2500-3000 times, bacteria kill 1200-1500 times, 70% 甲托800 å€, 80% 生 M-45800 times, 40% ç¦æ˜Ÿ 800-1000 times, There is also a cheap Bordeaux mixture. In the formulation of pesticides, the addition of quantitative synergists, penetrants or spreading agents, not only increased efficacy, long residual period, and resistance to rain erosion, control effect is quite good. 3. Pay attention to the quality of spraying The spraying process should be uniform, thoughtful, comprehensive, and meticulous, but also spray medicine to branches and fruits, highlight key points, do not leave troubles, and do its best to treat apple rotten disease later. , ruled, controlled to a minimum. 4. After fruit harvesting, the fruits are harvested until they are put into storage. The use of 2-6% calcium chloride, fruit disease or bacterial poison to dip fruit for 0.5-1 minutes, can significantly reduce the fruit of a series of rotten fruit during storage. Incidence.
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