Disease symptoms: Orange yellow dragon disease, also known as yellow shoot disease, commonly known as "chicken yellow" Guangdong said "play ball." The origin of Huanglongbing disease is mainly mycoplasma, which has been caused by excessive use of chemical fertilizers for a long period of time, as well as the propagation of woodworms and other transmitted insects (jellyfish). The initial diseased trees have "yellow shoots" and leaf spots. This " "Yellow shoots" often appear at the top and periphery of the canopy. Following that, the lower branches of diseased shoots and the branches of other parts of the canopy occur one after another. The disease is followed by spring shoots, with the most incidence occurring in summer and autumn shoots. The main pathogens are found in Guangdong and Guangxi. There are three provinces in Fujian, Yunnan, Hunan, Sichuan, Jiangxi, Zhejiang and abroad. As long as the orange tree has Huanglong disease (yellow adiposis), the fruit setting rate is low and the fruit size becomes smaller. The result is reduced in the second year. When the disease is severe, the root system will start to rot from the fibrous roots, gradually rot to the big roots, the xylem will turn black, and the root skin will fall off. It even caused the entire orange garden to be destroyed, but some orchards will gradually recover after several years of desolation. Experts are now studying the issue of mandarin orange to solve Huanglongbing disease. There is no cure. Some fruit farmers jokingly said, "Your orange tree is not suffering from Huanglong disease. It is iron deficiency!" The fruit growers think that they lack iron. In fact, they say that the iron deficiency is to cut the orange tree with a hatchet and dig it out with a hoe. Refers to the word "iron". Some local government officials and even some experts called farmers to chop, root and replant the fruit trees. They found that one had dug one tree and the fruit growers planted fruit trees for 3-4 years. When they saw the harvest, they got such a disease. Experts did not have a cure, and the farmers were helpless....

The production of Huanglongbing is a kind of mycoplasma. If we remove the diseased tree so as to leave no residue and replant it, it will be re-infected with Huanglongbing after 3-5 years. The main source is the viral bacteria. Staying in the soil, without improving the soil, we cannot eradicate the disease from the source. This is a solution to the problem. The pathogen of Huanglong disease is parasitized in sieve cells and parenchyma cells in the phloem of citrus. Long-term survival, breeding and soil. The second source is that the fruit growers lack scientific cultivation knowledge and lack scientific management and blindly use a large amount of chemical fertilizers. Especially in the early stage of planting fruit trees, fruit growers use the compound fertilizer and urea, or use some compound fertilizer, because some compound fertilizers Poor organic matter will make it impossible for fruit trees to absorb proper nutrients. Some waste fertilizers contain many harmful pathogenic bacteria. When they are harvested into the soil, harmful bacteria continue to multiply in the soil, preventing fruit trees from absorbing nutrients, and fruit farmers have problems with fruit trees. Blind fight drugs, and whether drugs play a role in disease, there is no scientific judgment, which will lead to more serious governance. Only rooting at the source is the solution to Huanglongbing. The root cause must be a permanent cure. It should be treated from the soil of the citrus tree, using microorganisms to improve the soil, thereby eliminating other germs, and using biological remediation and physical governance to allow the fruit trees to The fibrous roots grow normally. Only the growth of fibrous roots is well developed. The ability to better absorb nutrients is the fundamental method of treatment.

Control method: E-2001 microbial inoculum consists of 20 kinds of beneficial bacteria such as Bacillus breve, Bacillus circulans, Bacillus macerans, nitrogen-fixing bacteria, actinomycetes, plant-promoting rhizobacteria (PGPR), etc. After a large number of living beneficial microorganisms are applied to the soil, the microbial flora of the plant rhizosphere is changed, the beneficial bacteria grow and reproduce in the rhizosphere of the plant, occupy the breeding space of the pathogen, consume the food source (nutrient) of the pathogen, and benefit Antimicrobial substances produced by microorganisms inhibit the propagation of pathogenic bacteria in the rhizosphere; these microorganisms grow in the soil and produce enzymes such as chitinase that cleave nematode egg shells or cell walls of some fungi, allowing nematode egg shells The larvae do not survive and reproduce; the PGPRs of E-2001 microorganisms produce iron carriers (iron-containing low-molecular complexes) that increase the iron's cohesiveness, and PFPRs produce a siderophore that binds the iron networks and thus limits the harmful The growth of microorganisms;

1、Especially the various bacteria in the soil, provide bacterial strains to inhibit the environment of bacteria, and can neutralize decomposition and absorption of various fertilizers in the soil, apply an effective period of up to 4 months, use it three times per year, use it continuously for one to two years or more It can effectively inhibit the growth and reproduction of 90% of pathogenic bacteria in the soil and kill insect pests in the subterranean eggs, and kill other harmful bacteria such as protozoa, nematodes, root nodules, etc., together with the addition of other trace elements, the pH of the soil can be reached. Between 5.5 and 6.2, several trials have shown that Sha Huang Tang, Ma Shui Tang, Peng Gan, Gong Tang, Sha Tian You, Navel Orange, etc., have a certain effect on clinical trials of the treatment of Huanglongbing disease from the roots.

2. The use of Shimei Fertilizer E-2001 microbial agent to cure citrus yellowing disease is to use biological methods to understand the physical control and physical treatment of poisons to control “bacteria to treat bacteria”. Its purpose is to allow the orange tree to absorb beneficial microorganisms. Increase fertilizer efficiency, make tree roots more developed, tree cells more tubular, fruit trees grow vigorously, green, new shoots will not grow yellow within a year, orange tree roots, roots, trunks, branches and other absorption of adequate nutrients.

Instructions for use: 85 ml per mu, 3 mu (0.2 hectare) for one 250 ml.

The first step: Preparation: 1. E-2001 and Clearwater 1:100 mix (in order to make the best activation of bacteria, it is best to use underground well water, disable the chlorinated tap water).

2. Stir in a container for 10 minutes, place in the sun for 3-5 days, and the ambient temperature should be controlled at 22°C or more so that the microorganisms in the fertilizer will be fully activated. Step 2: Apply 1. Dig a small ditch around the mandarin tree. Use activated E-2001 to add 5-10 times more water, add trace elements to sprinkle in the drench or apply. After the application, cover the soil, and water it enough to allow the bacteria to survive.

3, the best conditions for the application of organic fertilizer with the best use.

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