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Fruit tree yellow leaf cause.
1. Excessive fertilization: fruit trees like fertilizer, but not tolerant of thick fertilizer, when breeding fruit trees, if the fertilization is too frequent or the fertilizer concentration is too high, it will lead to fertilizer damage to the plant, which will make the leaves of the fruit tree yellow and fall.
2. Too little watering: fruit trees need sufficient water in the growth process, when breeding fruit trees, if the watering is too little, then the plant is easy to grow poorly, so that the leaves of the fruit tree lack of water and dry and yellow, 3, too strong light: in the middle of summer when the fruit tree is maintained, if the light is too strong, it will cause the plant to be sunburned, so that the leaves of the fruit tree are scorched and yellow.
Treatment method for yellowing of fruit tree leaves.
1. In view of the yellowing of fruit tree leaves caused by excessive fertilization, it is necessary to stop fertilization immediately, and clean the soil with a large amount of water to reduce the fertilizer content in the soil and make the fruit trees grow healthily.
2. In view of the yellowing of the leaves of fruit trees caused by too little watering, it is necessary to water every three days to keep the soil moist, and it is also necessary to spray water regularly on the leaves of fruit trees to make their leaves more shiny.
3. In view of the yellowing of the leaves of fruit trees caused by too strong light, it is necessary to do a good job of shading measures for fruit trees, which can be covered on the plants with shade nets, and also need to use sterilized scissors to cut off the yellowing and dry leaves of fruit trees to avoid the loss of excess nutrients.
Yellow leaf control of fruit trees.
When maintaining fruit trees, you can apply nitrogen, phosphorus and potassium compound fertilizer every half a month or once a month to make it flower and bear fruit quickly, and you also need to regularly spray fungicides to fruit trees to prevent and control pests and diseases, so that fruit trees grow healthily, and you also need to spray potassium dihydrogen phosphate on the leaves of fruit trees to restore the green leaves of fruit trees.
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There is a problem with fertilizer. The purchased commercial organic fertilizer raw materials are inferior, such as chemical plant waste, urban sludge, various scraps from sugar factories and paper mills, weathered coal, etc., which not only have low nutrient content, but also may have the risk of heavy metals and harmful bacteria exceeding the standard, which may cause dead trees.
Homemade organic fertilizer is not completely decomposed, and it continues to react in the soil to exothermic roots, which can cause dead trees.
Second, it hurts the root when using.
Organic fertilizer is generally under the ditch, if the ditch position is too close to the trunk, fear of digging up the thick roots, and this kind of roots are not as fast as the absorption roots, it takes a long time to recover, and the fruit tree may die due to the rapid decline of the tree.
In addition to directly digging up the thick roots, the roots are not covered in time after ditching, so that the root system is exposed for a long time, which is also not good for the tree.
Many farmers want to quickly rot the farmhouse fertilizer, so it is recommended to use the Living Soil King Fermentation King to rot, and it will be rotten in half a month.
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After the fruit tree uses fertilizer, the leaves will turn yellow, roll the leaves, and lose the leaves, then you have used too much fertilizer for the fruit tree! Hurry up, flush her desperately! Where do you fertilize?
It's better to dig out that fertilizer. If you can't dig it out, it's already dissolved, and the fertilizer has to be washed with water quickly! Or soak the whole orchard in water and let the water go.
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In this case, you should use too much fertilizer, and in this case, you should teach the water to rinse the fertility, so that you can do it.
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Summary. Hello, for the yellowing of fruit tree leaves: 1. You can fight against mildew and add rooting agent to prevent and control yellow leaf disease.
2. Yellow leaf disease of fruit trees is generally caused by a lack of zinc and iron, and the most common is iron deficiency yellow leaf disease. 3. The low-lying orchard and poor soil permeability will lead to the iron in the soil being fixed, and the roots cannot absorb it, resulting in iron deficiency. 4. The occurrence of iron deficiency yellow leaf disease can be prevented by trimming the field, increasing organic fertilizer, appropriate watering, and cultivating loose soil.
Fruit tree leaves turn yellow! Roll the leaves! What medicine is good for leaf loss.
Hello, for the yellowing of fruit tree leaves: 1. You can fight the evil burning potato Liangmil plus rooting agent to prevent and control yellow leaf disease. 2. Yellow leaf disease of fruit trees is generally caused by the lack of zinc skin width and iron, and the most common is iron deficiency yellow leaf disease.
3. The low-lying orchard and poor soil permeability will lead to the iron in the soil being fixed, and the roots cannot absorb it, resulting in iron deficiency. 4. The occurrence of iron deficiency yellow leaf disease can be prevented by repairing Zhengtiantai, increasing organic fertilizer, appropriate watering, and cultivating loose soil.
Causes of leaf curling and their solutions:1Water shortage:
There are many factors that cause leaf curling in fruit trees, especially in summer, when the weather is hot, and plants are very likely to have leaf curling. Solution: If the plant is short of water only due to hot weather, as long as the plant is watered more or shaded properly, the symptoms can be alleviated.
2.Pests: The most likely insect pest that causes curling of fruit trees is aphids, which tend to gather on the back of the leaves to suck the sap, causing the leaves to curl and shrink.
Solution: For aphids, you can use 10% imidacloprid 2000 times solution, or pyrethroid pesticides for spraying control.
3.Potassium deficiency: the leaf edge is scorched, gradually expanding from the lower part of the new shoot to the upper part, scorching occurs on the leaves of old trees from mid-summer to late summer, sometimes the leaves are blue-green, and then the leaf margins are parallel to the main vein curl, fade green, and then burn.
Solution: Spraying potassium dihydrogen phosphate during the growing season, or topdressing potassium sulfate in the soil. 4.
Calcium deficiency: The tips of the apical young leaves are curled and hooked, and after a few days they become brownish-yellow scorched. Workaround:
The effect of calcium preparations such as GA Calcium Treasure, Motrin High Efficiency Calcium, and Calcium Lactate is good. 5.Molybdenum deficiency:
The leaf veins lose green in front of the ridge, or even turn yellow, and are prone to yellow or orange spots of different sizes, the leaves are slender and deformed, and the leaf margins are curled upwards into a cup, and finally the mesophyll falls off and is mutilated. Solution: Foliar spray of ammonium molybdate solution.
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The reason for the yellowing of the leaves of fruit trees and the withering of leaves lies in the following aspects: 1. Lack of nutrients Fruit trees need sufficient nutrients in the growth process, when breeding fruit trees, if the plant lacks iron, it will cause the leaves of the plant to dry up and turn yellow, and it is necessary to water the diluted ferrous sulfate at the roots of the fruit tree, and spray potassium dihydrogen phosphate on the branches and leaves of the plant to keep it green. 2. Diseased fruit trees will wither yellow branches and leaves in the case of infection with pests and diseases, when breeding fruit trees, it is necessary to use sterilized and sharp scissors to cut off all the leaves of the plant that are yellow and wilted, so as not to lose excess nutrients, and then spray carbendazim on the fracture of the fruit tree for disinfection and sterilization. 3. Too little watering, drought caused by breeding fruit trees, if too little watering, it will cause the plants to dry and yellow due to lack of water, need to water once a week when the soil is dry and no rain, keep the soil moist, but in the rainy season for the fruit trees need to drain the water in the soil.
4. The leaves of fruit trees will be yellow and dry when the light time is insufficient, and when cultivating fruit trees, it is necessary to provide them with leeward and fertile soil, and the branches and leaves of fruit trees that grow too densely should be cut to improve the light transmittance and ventilation between plants, and maintain the healthy growth of fruit trees. Dear, you can combine the actual situation, see which aspect of the above, and then take targeted measures.
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Summary. Hello dear, I am glad to answer for you the yellowing of fruit tree leaves! Roll the leaves!
What medicine is good to answer for leaf loss Peach tree leaf rolling, it is likely to be caused by aphid damage, it is recommended to use flufenamide acetamiprid spray. The curly and yellowish leaves of peach trees are caused by aphids, and they are controlled with imidacloprid or acetamiprid. The leaf curl of the peach tree should be caused by the damage of aphids, and the aphid mite should be sprayed immediately for prevention and control.
This can be infested by aphids and can be treated with chlorofluorine. Dinotefurin spray.
Fruit tree leaves turn yellow! Roll the leaves! What medicine is good for leaf loss.
What should I do if my leaves are yellow?
What medicine works well.
Dear, hello, very high buried in the interest for you to answer the fruit tree leaves yellow! Roll the leaves! What medicine is good to use for leaf loss Peach tree leaf curling, it is likely to be caused by aphid damage, it is recommended to use fludimidamide acetamiprid filial piety liquid hand spray.
The curly and yellow leaves of the peach tree are caused by aphid Qiaoqing, and they are controlled with imidacloprid or acetamiprid. The leaf curl of the peach tree should be caused by the damage of aphids, and the aphid mite should be sprayed immediately for prevention and control. This can be infested by aphids and can be treated with chlorofluorine.
Dinotefurin spray.
I'm asking about fruit trees.
The edges of the leaves have been rolled up and turned black.
It seems to burn that color.
Yellowing of fruit trees is actually related to many factors, including root problems, soil problems, and disease problems. Soil nutrient deficiency or acid-base imbalance In some newly cultivated orchards, the soil contains less nutrients, or due to the long-term use of chemical fertilizers, the soil acid-base imbalance, or in some sandy soils, it is not easy to retain fertilizer. It is suggested that some organic fertilizer can be used to increase the organic matter content of the soil and enhance soil health.
Then, through winter fertilizer and burial application, etc., to improve the fertility of the soil, you can also spray some foliar fertilizer to promote the rapid greening of the foliage. Root damage caused by yellowing Generally, the most common cause is root rot or fertilizer damage and other factors, causing damage to the root system of fruit trees, eventually leading to yellow leaves, when we dig up the soil layer to see the soil roots, we will find that the root system of fruit trees is yellow, there is no capillary fibrous roots, etc., for this phenomenon, the most important thing is to repair the root system first, and then supplement nutrition, it is recommended to apply 1-2 times of sea elf root application type, to promote the rapid recovery of the root system, and then to carry out normal management. Diseases and other causes of yellowing Root-knot nematode disease is an important cause of yellowing of many fruit trees, for root-knot nematodes, nematode treatment needs to be carried out first, generally you can use the agent avi thiazophosphine, for citrus varieties, if it is Huanglongbing infection, it is basically incurable, and the important thing is to prevent psyllids and prevent psyllids.
Conclusion There are many factors influencing yellowing of fruit trees, for yellowing trees, we must first check whether the leaves have symptoms of nutrient deficiency, and then see if the root system is normal, we can also test the condition of the soil, so as to prescribe the right medicine.
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Yellowing of fruit tree leaves is a common problem in the growth process of fruit trees, and measures need to be taken to solve it in time. Yellowing of leaves may be caused by a lack of nitrogen, phosphorus, iron, etc., or by foliar diseases, insect pests, etc.
If yellowing is caused by nutrient deficiency, appropriate fertilizer can be applied. It is generally recommended to apply compound fertilizer in time after the yellowing of the leaves of fruit trees. According to the different types of nutrients that fruit trees lack, the types of fertilization are also different.
Leaf detection can be used to identify missing nutrients and select suitable fertilizers for supplementation.
If it is yellowing caused by foliar diseases, the destruction can be sprayed with fungicides such as Macinin capsules and isomycin. Yellowing caused by insect infestations can be controlled with pesticides. However, it should be noted that the use of pesticides during the ripening period of the fruit should be avoided to avoid harm to human health.
In addition to fertilization and the use of pesticides, pruning can also be carried out on fruit trees. When the leaves of fruit trees are yellow, fruit trees can be pruned to remove aging, wilting and dead leaves, promote the growth of new shoots and branches, and improve the photosynthesis efficiency of fruit trees. In addition, scientific management of the cultivation of fruit trees, reasonable irrigation, pruning, fertilization and other work can also effectively prevent the yellowing of fruit tree leaves.
To sum up, it is very necessary to choose the corresponding agent for treatment according to the reason why the leaves of the fruit tree are yellow. However, when applying pesticides, we should follow the principles of scientific and reasonable, pay attention to safety and hygiene, and improve the quality and yield of fruit trees.
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Summary. The yellow leaves of fruit trees or flowers and plants are likely to be caused by a lack of nitrogen fertilizer, and nitrogen fertilizers such as urea, ammonium sulfate, and ammonium bicarbonate should be supplemented in time. It can be used to dig holes to apply, spread, spray foliar fertilizer, etc.
The yellow leaves of fruit trees or flowers and plants are likely to be caused by a lack of nitrogen fertilizer, and nitrogen blind bush fertilizers such as urea, sulfur and ammonium bicarbonate should be supplemented in time. It can be used to dig holes to apply, spread, spray foliar fertilizer, etc.
When fruit trees, crops, flowers and plants lack the element of iron and wide rot, the leaves will turn yellow, and the old leaves and young leaves will yellow at the same time, which will seriously hinder growth. If this situation is caused, it is usually watered ferrous sulfate solution, the concentration must be controlled when watering, a small amount of multiple application of the base leakage, otherwise it is easy to burn the roots, and the low-concentration fertilizer plants can also be better absorbed, which can promote the recovery as soon as possible.
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If the leaves on the fruit tree are yellowed due to excessive use of chemical fertilizers, the following measures can be taken:1Stop fertilization in time:
If excessive fertilizer use is found, fertilizer application should be stopped immediately to avoid damage to new leaves. 2.Watering more:
Increase the amount of watering, promote the dilution of nutrients in the soil, and reduce the impact of fertilizer concentration and burial on fruit trees. 3.Foliar Sprays:
Foliar sprays can be used to provide nutrients to the trees through foliar uptake and replace nutrients lost due to overfertilization. 4.Change the soil and change the pot:
If the situation is severe, consider transplanting the tree into new soil or replacing the potting soil to allow it to grow again. It should be noted that in order to avoid similar situations from happening again, it is necessary to use fertilizer in strict accordance with the instructions on the fertilizer packaging to avoid overuse.
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