With high temperatures in the summer and high-risk period of diseases and insect pests of the persimmon trees, the researcher Lu Zhoumin, an expert on fruit trees at the Northwest Forestry University, said that there are many misunderstandings in the management of persimmon trees. For example, farmers believe that persimmon trees are resistant to diseases and insects, and do not use water. Fertilization, high yield every year. In actual fact, if you want the persimmon trees to be of good quality and high yield, and get good returns, you must pay attention to disease prevention, otherwise there is no chance of harvesting. Kaki disease The Kaki disease tree sprouted late in spring, and the growth was slow, and the fruit became softer and fell off afterwards, resulting in severe incompetence or dead plants. Control methods: The use of disease-resistant varieties or the breeding of disease-resistant rootstocks can be used, and at the same time, the cultivation and management can be strengthened to improve disease resistance. Tetracycline antibiotics can be injected into the tree. Persimmon leaf spot It mainly damages the leaves and the fruit pedicles, and it causes heavy defoliation and fruit drop. Control methods: Before the new leaf is pumped, the disease can be markedly removed. From June to July, 400 times of the Bordeaux mixture was sprayed twice. In addition, 70% mancozeb dry suspension 500 times or 64% antipoisonous wetting powder 500 times can be used. In addition, organic fertilizers are added to improve disease resistance. Persimmon Anthracnose It mainly damages shoots and fruits and sometimes invades the leaves. Prevention methods: Strengthen the management of fertilizer and water to prevent the production of sticks. Clear the initial infestation source and spray the drug. The persimmon tree was carefully cut off the diseased branches and diseased fruits, cleared the fallen fruits, and burned or buried deeply. Persimmon The worm mainly damages the leaves and fruits of persimmon trees with nymphs. Control methods: Before the persimmon tree germinates, shoot the branches with Baume 5 degree lime sulfur to eliminate the overwintering nymphs. Grasping the nymphs at their peak, there is no favorable opportunity for the drug shells to form before the wax shells are formed. It can be controlled with 25.5% insecticide 1500 times liquid. For a white wax shell that has been sprayed with 200 times more wax and 1000 times insecticidal power, it can also achieve a deterrent effect. Shidi Shizillae mainly damages the fruit. The larvae dip into the persimmon fruit from the Shidi, making the fruit soft and become "persimmon", and then shedding. Control methods: The larvae endangered in the middle and late June and the second-generation larvae endanger the persimmon fruit period in the middle and late August, completely eliminate the damaged fruit, eliminate the larvae and larvae of the year. In the middle of August, the grass trunks were tied to the trunks to induce the mature larvae to pass through the winter. After the winter, the grass was removed and burned. At the end of May and beginning of June and early July and early August, both the spawning period and the larval hatching period of the two spraying speed killing butyl or deltamethrin, the insecticidal effect is better. Application Fitting And Installation,Fitting wall panels,Bath Panel Fitting Instructions Ningbo Wellway Optoelectronic Technology Co.,Ltd , https://www.wellwayopto.com