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Summary. Hello, I am glad to answer for you, cherry brown spot is a plant disease, the main affected plant is cherry, also known as cherry brown spot perforation.
Hope mine can help you.
What is this cherry disease.
Hello, I am glad to answer for you, cherry brown spot is a plant disease, the main affected plant is cherry, also known as cherry brown spot perforation. Hope mine can help you.
The severity of the annual onset of cherries is not only related to the amount of spring rainfall, but also the density of cherry trees planted in the cherry orchard, the strength of ventilation and light transmission ability, and whether the moisture in the orchard is easy to stay.
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Disease control
Prevention and control of gum disease: avoid building gardens in cohesive soils, increase the application of organic fertilizers, prevent drought, waterlogging and frost damage, strengthen the tree, and improve the resistance of the tree; The trunk is painted white to prevent sunburn; strengthen pest control, especially dry-boring pests; Pruning should pay attention to reduce wounds and avoid mechanical damage; The diseased branches should be scraped and treated in a timely and thorough manner, and the wound should be smeared with 10 parts of quicklime, 1 part of stone sulfur mixture, 2 parts of salt, and a protective agent made of vegetable oil and water.
Prevention and control of plaster disease: timely ditch drainage to keep the park ventilated and light-transmitting; Scrape off the bacteriographic film and burn it intensively, and apply 5-6 ° BE stone sulfur mixture to the diseased part; In the summer and autumn when there is high temperature and rain, and diseases are frequent, 800 times of 50% antibacterial special wettable powder or 1000 times of 70% methyl tobuzin wettable powder can be sprayed for prevention and control.
Pest control
Prevention and control of the rosé-necked longhorn beetle: Before the adults hatch in early to mid-June, spray whitening agent on the branches to prevent the adults from laying eggs. During the hatching period (late June to mid-July), the adults mostly lie dormant on the trunk of the tree at noon and can be manually killed.
In the larval damage period, when it is found that there is fresh feces discharged from the cavities, the insect feces in the cavities are hooked with wire, and the 80% dichlorvos emulsion is dipped in a small cotton ball 200 times, which is blocked in the cavities, and then the larvae are smoked with the adjusted yellow mud sealing.
Mulberry white scale control: wipe and brush the insect body in winter, or scrape off the overwintering insect body on the bark, and apply the trunk with clay and diesel emulsion (1 part of diesel + 1 part of fine clay + 2 parts of water, mixed) to stick the insecticidal body. Spray 50 times liquid oil emulsion or 5° BE stone sulfur mixture before germination to control overwintering female adults.
Before the hatching nymphs of each generation have not yet formed a scale shell (mid-May, mid-July, mid-September), spray 1000 times of 40% phosphorus emulsifiable concentrate, and spray once at an interval of 20 days to effectively control it.
Cherry gall head aphid control: Before the cherry tree blooms, the whole tree is sprayed with rotenone emulsifiable concentrate 750 times, which has a good effect on killing overwintering insect eggs. One week after cherry flowering, the overwintering insect eggs began to hatch, and when the gall had not yet formed, spray 1000-1500 times of 3% natural pyrethroid microcapsule suspension or 400-500 times of rotenone emulsifiable concentrate for control.
Trim properly
In the juvenile stage (1-3 years), short pruning is the mainstay, combined with summer topping, promoting branching, and rapidly expanding the canopy in order to form a good tree shape. The first fruiting period (4-5 years) should be slow, and whip branches should be formed, and leaf clusters and flower buds should be formed on the branches. During the fruiting period (6-20 years), the relationship between growth and fruiting is adjusted through pruning, so that it is balanced, and the main branches and side branches, except for pruning diseased and insect branches, can generally not move.
For the extension of the main side branches, only the head can be lightly tapped or the tip of the parasitic pest can be pruned. The old fruit branches in the canopy can be retracted and renewed once every 2-3 years, and the fruiting position is controlled to prevent the inner chamber from being empty. In the senescence stage, it is necessary to retract and renew to promote its multiple branches, and appropriately retract the fruiting branches.
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Cherry yellow leaf disease is caused by yellowing or even leaf loss. Cherry yellow leaf disease may be caused by lack of nutrients, at this time, the plant can be supplemented with corresponding nutrients to return to normal growth as soon as possible, foliar fertilizer can also be used for the plant, and the plant can also be sprayed with insecticides, which can ensure the smooth and healthy growth of the plant.
Symptoms of cherry yellow leaf disease.
Cherry yellow leaf disease is when the leaves of the cherry tree seedlings suddenly begin to turn yellow, and even accompanied by leaf loss, the growth of the plant begins to weaken.
Yellow leaf disease hazards.
Cherry yellow leaf disease hazards:The old leaves are yellowish until they fall off, the veins of the new leaves in the upper part of the young branches are green, the rest of the leaves are yellow-green or yellowish-white, the leaves are small and thin, the edges of the leaves are scorched and wilted, and a large amount of them fall off, resulting in poor fruit quality or failure to bear fruit.
Causes of cherry yellow leaf disease.
If the leaves are curly, dry and dull, then the root system is caused by a lack of nitrogen fertilizer, iron fertilizer, lack of water, etc.
What medicine is used for cherry yellow leaf disease.
Foliar sprays can be applied with foliar fertilizers such as tebuconazole, Kemycom, Aizengmei, and amino acids for cherry yellow leaf disease, and then sprayed with insecticides after 10 days.
**Virus-specific drugs.
Cherry yellow leaf disease can be sprayed on the leaves only to apply phosphorus, calcium, zinc and silicon to reduce the symptoms, so that the shrunken virus leaves are flattened, and the leaves are sprayed at the same time combined with the underground yellow medicine master to irrigate the roots, the effect of Xiaoshankai is better, and the virus can also be sprayed with special agents to inactivate the virus.
Cherry yellow leaf disease control method, yellow leaf disease ** method.
Spraying a mixture of ferrous sulfate, copper sulfate and lime or ferrous sulfate solution on the trunk of the diseased tree before germination can effectively control the disease.
Yellow leaf disease precautions.
If cherry yellow leaf disease is caused by nutrient deficiency, the plant can be supplemented with corresponding elements to make it recover as soon as possible, and for yellow leaves caused by various defects, foliar fertilizer can be used to supplement targeted supplementary elements.
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Suspected viral disease.
Symptoms: There are many kinds of diseases caused by viruses, mycoplasmas, and rickettsia, and there are more than 40 kinds of diseases that have been recorded. It not only affects the growth of the tree, but also affects the yield and quality, and also affects the life span of the large cherry tree.
Q: What are the obvious symptoms of viral diseases?
Internode shortening, loss of green and yellowing, albino of leaf veins, leaflets, mosaic leaves, arbusic branches, leaflet shrinkage, leaf curling, leaf scorching, branch cracked ulcers, coarse skin, small fruits, etc. It is one of the main causes of the death of large cherry trees, and drug prevention and control are ineffective. The most common viral diseases in China include Lee-line spot disease, large cherry file disease, large cherry dwarf disease, large cherry wrinkled leaf disease, etc.
The main transmission routes are: grafting transmission, aphid, underground nematode transmission, pollen transmission, tree pruning, watering and other operational transmission.
Viral Disease Prevention:
Once the tree is infected with a viral disease, it cannot be exempted for life, and there is no effective method and prevention and control agent at present, so it can only be comprehensively prevented and controlled according to the characteristics of the disease and the transmission route. First of all, once the disease plant is found or confirmed, it will be strictly isolated or excavated; Ornamental cherries are the intermediate host of small fruit diseases, and it is not suitable to plant such intermediate host plants in large cherry cultivation areas. breeding and planting virus-free seedlings, which is the most effective way to prevent and control viral diseases; Strengthen field management, increase the application of organic fertilizers, improve tree resistance, soil disinfection, reduce or eliminate soil nematodes, and pay attention to the disinfection of operating tools.
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You can use pesticides for control, or for watering, or to understand the nature of the soil, or to renovate the soil frequently, and to prevent various viruses in advance.
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First of all, it is necessary to disinfect and quarantine these seedlings, and then it is also necessary to ensure the base fertilizer, and then it is necessary to use organic fertilizer, and then it can also be topdressed by foliar spraying, and it is necessary to supplement trace elements, and then it is also necessary to do a good job of drainage and cooling.
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You can dress the seeds of cherries when planting cherries, consume the land where cherries are planted, treat pests during the growth of cherries, and spray some pesticides on cherries, so that you can prevent pests and diseases.
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1. When grafting cherry trees, the selection of rootstocks resistant to root cancer, such as Chinese cherries and tart cherries, can reduce the occurrence of root cancer. 2. Do a good job of draining the cherry orchard in time during the rainy season, do not hurt the roots of the cherry tree and the roots near the rhizome when farming, and do a good job in the pest management of cherries. 3. For seedlings that may have root cancer, dip the roots with 30 times of root cancer spirit or 2 4 times of anti-root cancer agent before planting.
4. If it is found that the cherry tree is seriously ill or dead from root cancer, it should be cleaned out of the park in time and burned.
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Cherry fruit is rich in sugar, protein, vitamins and calcium. Cherry] antidiarrheal. Ancient books record that cherries can replenish the body and invigorate qi, and eat more without damage, especially suitable for people who are weak and sick, that is, people with chronic debilitating diseases.
In addition, cherries have a low glycemic index and are one of the preferred fruits for diabetics.
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Cherry, also known as warbler peach, peach, vitex peach, etc., is the ripe fruit of the woody plant cherry of the Rosaceae family. Although the fruit is as small as a pearl, the color is red and bright, the taste is sweet and slightly sour, it can be eaten fresh, pickled or used as an embellishment for other dishes, and is favored by people. It has the effects of whitening, blood replenishment, detoxification and laxative.
1. Whitening: Cherries are nutritious, and eating cherries in moderation can make the face ruddy and white.
2. Blood supplementation: The iron content in cherries ranks first among all kinds of fruits, so it has the effect of promoting the production of hemoglobin, and the blood tonic effect is better, which can make the complexion ruddy.
3. Detoxification and laxative: Cherries can help the body to discharge toxins and have a laxative effect.
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It's just a fruit, and it doesn't have any special effects. Eating more is harmful, phlegm, and sores.
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Cherries are rich in iron, with about 6 mg of iron per 100 grams of cherries, which is 20 times the iron content of oranges, apples, and pears.
Traditional Chinese medicine believes that cherries are sweet, sour, warm in nature, and have the effects of nourishing blood and beauty, strengthening the spleen and stomach, nourishing the liver and kidneys, producing sperm and stopping diarrhea, dispelling wind and dehumidifying.
Modern medicine has found that cherries, which contain more iron, have the effect of promoting the production of hemoglobin, so they can replenish blood and make the face rosy.
Cherry is not only a fresh fruit with good color, fragrance, taste and shape, but also a food for women's skin care and beauty. Cherries can be eaten by people of any body type, except for those with fever, especially women. Especially for young women, eating some cherries after menstruation can not only replenish the blood lost during menstruation in time, achieve the purpose of strengthening the body, but also make ** beautiful and moving.
For women with iron deficiency anemia, cherries are the fruit of choice for fitness and skin care.
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