Jujube disease

Jujube disease is a devastating disease of jujube and jujube, occurring in most parts of the national jujube area, Hebei Fuping, Beijing Mijie, Shanxi Straw Mountain, Shaanxi Qingyu, Henan Neihuang, Anhui Qixian, Guangxi Guanyang and other jujube areas are more serious, the general disease rate of 3% to 5%, and some jujube gardens up to 30%, resulting in greater loss of jujube production, the development of the jujube industry also have a certain impact. The symptoms of juvenile berry disease are the return of floral organs, pedicel elongation, sepals, petals, stamens become lobular, the main buds, secreted buds, and sub buds become short and thin clusters of branches after sprouting, dormancy does not fall off , Residues on the tree. Seriously ill trees do not generally result in fruit or fruit. Fruits are small, flowers are hard and hard to eat. Generally from the first branch of the disease, spread gradually, its spread rate varies depending on the species and management conditions, the general jujube tree 1 to 2 years after the onset of disease, the tree 5 to 6 years the whole tree is dead. The pathogen of jujube disease is phytoplasma (formerly known as mycoplasma), and the transmission route is mainly transmitted by Chinese rhizomatous leafhoppers, leaf edge leafhoppers and grafted, diseased nursery stocks, pine, cypress, zhizhi, etc. Plants are the wintering ground and the main host of leafhoppers. According to the investigation of the jujube area of ​​Qingyi County in Shaanxi Province, there are cypress trees near the jujube garden with severe jujube disease. The incubation period and hazards of jujube disease are related to factors such as variety, ecological environment, and management conditions. According to the survey, cold and light areas have less incidence, and jujube tree jujube disease with extensive management is more serious. The jujube area in the north of Taiyuan, Shanxi, has an annual average temperature of around 8°C, and jujube disease rarely occurs. The Jujube Garden of the Institute of Fruit Research, Shanxi Academy of Agricultural Sciences, was planted in 1965. After the Cultural Revolution, it was not managed until 1980. The Zaoyuan was deserted and Jujube disease was serious. There were more than 500 jujube trees in the whole park, and the diseased plant rate was nearly 30. %. In 1980, the madness tree was completely removed and management was strengthened. Jujube disease was basically controlled. The survey found that the incidence of jujube disease is related to varieties. The rate of non-fat crisp disease is 100%, Lizao 83%, U.S. candied fruit is 67%, 33% of mother-in-law dates are only 1 case, and the rate of spread is not fast, and the rate of diseased plants is not faster than 1%, jujube is not disease, in the ecological environment, the level of management and the same order of the tree, the occurrence of jujube between the varieties vary greatly. Prevention and control methods First, use disease-free seedlings and scion: It is forbidden to plan root seedlings and collecting scions in jujube wards to prevent seedlings and scions from spreading. Second, timely removal of diseased branches, diseased trees and diseased seedlings: the diseased trees saw the removal of the crazy branches, and the severely diseased trees were removed. The mad diseased seedlings found in the nursery were promptly removed. This is one of the most effective ways to prevent jujube disease. Third, strengthen management, enhance tree vigor, and improve the ability of tree disease resistance: Practice has proved that absurd jujube garden jujube mad disease is serious, to strengthen the comprehensive management of the jujube orchard, can effectively reduce the harm of jujube fever. Fourth, control and spread diseased insects and cut off the route of transmission: leafhoppers can be transmitted to disease-free trees after they are sucked by madness trees. After the jujube sprouts, it can kill leafhoppers by combining it with other insect pests to control insecticides. At the same time, jujube gardens should not be used as intercropping plants. In the vicinity of jujube gardens, pine, cypress and paulownia trees should not be planted. In October, the leafhoppers were transferred to pines and cypresses, and before the spring leafhoppers were transferred to jujube trees, insecticides were sprayed on pine and cypress. Reduce the population of insects and reduce the chance of infection. Fifth, treatment with antibiotics: Before germination, first remove the mad branches from the diseased tree, germinate and then use the trunk hole to infuse the bottle before flowering. The commonly used agents include oxytetracycline, tetracycline hydrochloride, etc. The concentration is generally controlled at 1 / 1000, the amount of the drug varies depending on the degree of severity of the tree and the severity of the disease. According to tests conducted by the Chinese Academy of Forestry and other units, the method has a certain effect. Sixth, the selection of disease-resistant varieties is the best way to prevent jujube disease.

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Bioresonance Therapy Machine is the abbreviation of Bio-resonance therapy. Bioresonance Therapy Machine is a therapy device specified for solicitation of low frequency electromagnetic therapy. It will help you to prevent & cure diseases in time; will improve your health and immune system.

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