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The main reasons for the dead walnut tree are as follows!
First, it is caused by pests and diseases, and it is not treated in time.
Second, it may be due to the extreme low or high temperature environment outside.
the impact of thinking that it was afraid of being frozen.
Third, it may be that the management technology is not in place, that is, the long-term lack of sufficient water** will lead to the death of peach trees.
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1. Heavy stubble cultivation: peach tree roots contain amygdalin, which produces hydronitrile acid when decaying and decomposing, which can poison young tree roots, so cultivation in heavy stubble should be carried out for 2-3 years of crop rotation or thorough soil change before cultivation.
2. Caused by peach tree root diseases: At present, the diseases that affect the growth of peach trees mainly include rot disease and root rot. These two diseases mainly harm the growth of the roots and branches of peach trees.
3. Waterlogging and frost damage occur alternately: peach trees are drought tolerant but not waterlogged, and if the orchard is poorly drained or low-lying water is accumulated in rainy years, it is easy for peach trees to die from waterlogging, and at the same time, if it encounters low temperature weather in winter, it is easy to die.
4. Changes in soil environment: peach trees are suitable for growing soft sandy loam soil, and the appropriate pH is that peach trees have poor salt and alkali tolerance, and peach trees often cause plant death in the soil with salt content, and yellow leaf disease caused by iron deficiency often occurs in alkaline soils.
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There are many reasons for the death of peach trees, such as seeds that are not strictly sterilized; For example, soil problems, so that the root system of peach trees cannot breathe normally; It may also be monotonous fertilization, etc. Solution: After digging up the dead trees in summer, then dig 80cm 80cm 60cm soil pit, dig to the sand layer when the soil layer is thin, pick up the residual roots, expose to the sun for about a month, add 4kg of grass and wood ash to each hole (burn pit ash is the best), turn evenly and then dry, fill in the autumn rain when it comes.
When planting trees in spring, add an appropriate amount of organic fertilizer to each hole and turn it evenly, and water it in time after planting. Pay attention to do a good job of moisture preservation. Larger trees are heavily truncated when planted.
Do a good job of thinning before flowering to avoid the consumption of the tree itself. During the growth period, the integrated management of fertilizer and water should be strengthened to ensure the normal growth of the tree.
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The cause of peach tree death may be the lack of oxygen in the soil caused by continuous heavy rain.
Flood discharge areas, low-lying areas and multi-day waterlogging after heavy rainfall will lead to a lack of oxygen in the soil, resulting in carbon dioxide poisoning of the root system and gradual death, mildew and mildew until the whole tree dies. Clay, overly compacted soils and old orchards with dense and heavy soils for many years have poor aeration, which can also suffocate the root system and cause dead trees.
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Reasons for dead trees 1. Heavy stubble cultivation: The roots of peach trees contain amygdalin, which produces hydronitrile acid when decaying and decomposing, which can poison young tree roots, so it should be cultivated in heavy stubble for 2-3 years or completely change the soil and then cultivate. 2. Caused by diseases of peach tree roots.
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1.It may be due to disease and death, insect infestation, but you have not paid attention to it, or it may be due to extreme lack of nutrients or lack of water.
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What is the reason for the death of the pottery tree, I think there must be many reasons why your peach tree died, yes, because it may be sick, naturally, he will die, and there is more water, and it is easy to die.
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Summary. Hello, there are several reasons why the peach tree dies:
1.Heavy cropping.
2.Disease occurs in the roots of peach trees.
3.Waterlogging and frost damage occur alternately.
4.Changes in the soil environment:
Peach trees are suitable for growing soft sandy loam soil, and the appropriate pH is that peach trees have poor salt and alkali tolerance, and peach trees often cause plant death in the soil with salt content above, and yellow leaf disease caused by iron deficiency often occurs in alkaline soils.
What causes peach trees to die?
Hello,, there are several reasons for the death of the peach tree:1Heavy stubble cultivation 2
Disease occurs in the roots of peach trees3Waterlogging and frost damage alternately occur4Changes in the soil environment:
Peach trees are suitable for growing soft sandy loam soil, and the appropriate pH is that peach trees have poor salt and alkali tolerance, and peach trees often cause plant death in the soil with salt content above, and yellow leaf disease caused by iron deficiency often occurs in alkaline soils.
Peach root disease is another important cause of yellowing of peach leaves, the plant suffers from root cancer, purple feather disease, white silk disease, root rot, etc., which affects the growth of the root system, hinders the absorption of nutrients and water by the root system, forms a weak tree, and dies in severe cases. <>
Fruit trees are unevenly flooded. When the site is not right, the selected plot soil is heavy and permeable, which will directly affect the growth of the root system, and when it rains, it will present waterlogging, and the root will be in a state of hypoxia for a long time, and the time will be too long, resulting in the production of many harmful metabolites, which will eventually lead to root rot and serious <> of the death of the whole plant
The above is the analysis <> the causes of the dead tree of the peach tree
The specific solution is: to choose a site with good permeability, the key process of cultivation can not appear excessive drought or excessive humidity, the amount of fertilizer is appropriate, and the tree body dies <> not burned roots
In winter, take <> measures to keep the tree warm
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Taoyuan found a lot of dead peach trees, what could be the reason? Peach tree management is not difficult for most growers, as long as it can be fertilized and watered in accordance with scientific management methods, disease prevention and insect treatment, the tree will definitely not be bad, and the benefits will not be bad. But some fruit farmers in Weilin Town, Dali County, said that their peach trees have many problems, what is the problem?
Let's take a look. The phenomenon of peach tree death is caused by frost damage, which is caused by the large temperature difference between day and night in sandy loess. In addition, root rot can also cause dead trees.
In order to prevent the phenomenon of peach tree death, it is necessary to do a good job of anti-freezing in winter, the soil of the roots should be cultivated a little higher, and the trunk should be painted white, and the winter irrigation should be watered once at the end of December and January to improve the fertilization structure, and the peach tree should be applied to the bottom fertilizer in mid-August. Iron deficiency is the most direct manifestation of peach branches, the symptoms of nitrogen deficiency are green, the top leaves of the new shoots begin, the middle leaves initially turn green and yellow, the leaf veins remain green, the leaves are green reticulated, with the aggravation of the yellowing degree, the leaves of the new shoots are all yellowish-white, the lower old leaves also appear, and then the top leaves of the new shoots appear necrotic spots; Brown scorched spots begin to appear on the edges of the leaves, and the leaves gradually die, and in severe cases, the leaves scorch and fall off, and the terminal buds die, or even lead to the death of the whole plant.
In addition to the leaves showing signs of atrophy, the fruits also showed signs of atrophy. In production practice, the key is to analyze what causes the malabsorption of iron, nitrogen and other elements that lead to wilting. It is necessary to conduct on-site investigation and analysis of the cause of the orchard to see whether it is the yellowing of individual tree species or the yellowing of the whole plant, and the analysis sequence is from management, orchard environment, gardening, plastic pruning, fertilization, overall to partial, and individual plants are analyzed from top to bottom.
In this way, the real yellowing phenomenon will gradually be eliminated. The stem ulcer rots, hindering the transport of nutrients. Branch rot disease leads to the obstruction of local nutrient transport, resulting in local yellowing of peach trees, which is manifested as yellowing of individual branches of a tree.
In recent years, root neck rot has occurred from time to time due to low temperature frost damage in winter, which will lead to sporadic tree weakening and yellowing of the whole tree in the orchard. Improper pruning can lead to yellowing.
Excessive pruning after fruit harvest, before fruit harvest, various organic and inorganic nutrients mainly supply fruit growth, and root growth is inhibited. After the fruit is harvested, the root system is in dire need of organic nutrients from the leaves. At this time, the root system is retracted and pruned, and a large number of nutrient branches and leaves in the aboveground are lost, resulting in insufficient nutrients for the growth of underground roots, resulting in the death of capillary roots due to excessive pruning.
The root system does not absorb nutrients well, resulting in a deficiency of nutrients in the aboveground parts.
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It may be that the pesticides are used incorrectly, the concentration of pesticides is too high, there is no frequent watering, no fertilization, and no attention to field management, so there will be many dead peach trees.
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It may be that the soil contains a lot of microorganisms that eventually damage the roots of the peach tree, it may be caused by root rot, or it may be that the plant variety is not good enough.
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The dry leaves of the peach tree may be due to the following reasons:1Water shortage:
Peach trees need plenty of water to grow, and if the soil is dry and dehydrated, it can cause the leaves to dry out. Hashicha 2Pests and diseases:
Peach trees can be attacked by pests such as aphids, spider mites, aphids, etc., which can suck up the sap of the peach tree, causing the leaves to dry up. 3.Nutritional deficiencies:
Peach trees need adequate nutrients to grow, and if there is a lack of nutrients in the soil, the leaves of the peach tree will dry out. 4.Environmental impact:
The environment in which the peach tree grows can also affect the health of its leaves, such as high temperature and dryness, strong winds, sunburn, etc., which may cause the leaves of the peach tree to dry out. If the leaves of the peach tree are dry, they should be maintained in time. First of all, check whether the soil is short of water and nutrients, and replenish it as soon as possible; secondly, spraying the chemical solution to prevent the invasion of pests and diseases; Finally, in hot weather, the peach tree can be shaded or sprayed with water to reduce the ambient temperature.
The above measures can effectively prevent and ** peach tree leaves dry out.
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Hello dear, it is generally caused by pests and diseases. There are many reasons why peach trees die, and here are a few of the more common ones. 1.
Pests and diseases: Peach trees are susceptible to psyllids, peach aphids, scabs, powdery mildew and other pests and diseases, which can cause damage to the roots, stems and leaves of peach trees, and in severe cases, death. 2.
Too little water: Peach trees need plenty of water to grow, and when the soil is over-dried and irrigated insufficiently, it can cause peach trees to die. 3.
Loose soil: peach trees need to hail to have sufficient nutrients and oxygen, if the planting soil quality is not good, the soil is compact, and the drainage is poor, resulting in a lack of oxygen in the root system, it is difficult to absorb nutrients, and it is easy to cause dead trees. 4.
Improper fertilization of the source of fertilization: malnutrition will also lead to the death of peach trees, excessive or insufficient fertilization is not conducive to the growth and development of peach trees, and reasonable fertilization should be carried out according to soil conditions and peach tree absorption capacity. In short, there are many reasons for the death of peach trees, and planting management needs to pay attention to find and deal with plant problems in time, and maintain a good cultivation environment in order to make peach trees grow healthily.
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Hello, peach rot on a peach tree is generally a canker of peaches. You can determine based on the peach tree canker symptoms I provided, and if the symptoms are the same as described, it is peach tree canker disease.
Symptoms of peach tree canker disease
After the peach fruit is infected by the fungus, it first forms a small round lesion on the fruit surface, which is slightly concave, light brown on the periphery, and grayish-white. Later, the lesion expands rapidly, and the depression deepens. Under humid conditions, a grayish-white mold layer is formed on the lesions, which are the conidia and conidia of the pathogen.
In the later stage, the lesions are dehydrated, and the flesh under it is soft and white, like rotten wood. The new shoots are damaged, forming dark brown spot ulcers. The leaves are damaged, the lesions are nearly round, grayish-brown.
Prevention and control measures for canker disease in peach trees
1) Strong trees to prevent diseases
Reasonable loading: Determine the appropriate amount of fruit according to the fertility status of the tree and the level of fertilization. Don't let the tree body be overburdened, and properly thin the flowers and fruits, so that the fruit grows and the tree is not wrong.
Increase fertilizer and water: For the northern peach area, the more common phenomenon is the lack of fertilizer and water. In fertilization, attention should be paid to increasing organic fertilizer, phosphorus fertilizer, potassium fertilizer and trace element fertilizer; At the same time, do not apply too much nitrogen fertilizer.
Leaf protection and root promotion: timely control of pests and diseases that cause early defoliation. Such as perforation diseases, leaf shrinkage diseases, rusts, as well as red spiders, aphids, leaf roller moths, etc. In addition, attention should be paid to the prevention and control of various root diseases.
2) Avoid and protect wounds
Avoid and reduce wounds on branches, and properly protect existing wounds and promote healing. Thorough control of branch pests, such as gidding, feather moth, longhorn beetle, etc.
Prevent frost damage and sun burning: The temperature difference between day and night on the sunny side of the peach tree branch is large, and it is easy to suffer from frost damage. The most effective measures to prevent frost damage are: first, the trunk is painted white to reduce the temperature difference between day and night; The second is to bundle the grass with the trunk and cover it for frost protection.
The formula of commonly used whitening agent is 12-13 kg of quicklime; Add 2 kg of stone sulfur mixture stock solution (about 20 Baumé), add 2 kg of salt, and add 36 kg of water; Or 10 kg of quicklime, add 3-4 kg of soy milk, add 10 to 50 kg of water. Whitening can also prevent the branches from burning in the sun.
Wound protection: Larger saw edges should be flattened and then protected by tung oil, varnish or Tobuzin ointment, S-92L antibacterial agent, etc. After the larger lesion**, it is necessary to carry out bridging and protection in time.
3) Timely ** lesions
Scrape the bark: scrape off the upturned bark and necrotic tissue before the peach tree germinates, and then spray 300 times of 50% Fumei arsenic wettable powder, or 1-3 Baumé stone sulfur mixture.
Agent** lesions: After scraping off the diseased tissues, mix 1 part of 70% methyl tobuzin wettable powder plus 2 5 parts of vegetable oil, or 1 part of 50% carbendazim wettable powder plus 1 5 parts of vegetable oil to evenly apply the diseased part, which has a good effect on ** lesions. You can also apply S-92L antimicrobial 20 30 times solution, 40% Fumei arsenic 50 times solution or 30% decay enemy 30 times solution, 843** stock solution, etc., to prevent scarring**.
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