Planting flowers and trees, cats and dogs have it, leisurely and carefree. Such a comfortable old-age life is the ideal state of many young people, and it is also the beautiful yearning of contemporary people for quality life. However, these things are simple and beautiful to say. To do them well, you need some professional skills. It's like planting flowers. In order to truly enjoy the colorful flowers and the situation in full of green, the correct planting method is extremely important! Just like some time ago, a flower friend came to ask uncle gardener, "Uncle, what should I do if the leaves of my apple tree are dry?" How to save dead apple leaves? "There is a fruit tree at home. It is the dream of many people to pick it if they want to eat it. However, trees, like people, need a lot of efforts to cultivate. As the saying goes, "it takes ten years to plant trees, but it takes a hundred years to cultivate people." "It takes a lifetime to cultivate this person. As long as you master the right method, the tree will give you more returns. But after finding something wrong with the tree, timely treatment can still make the love tree turn green again, but first you still have to find out the reason why it failed. There are many reasons for the dead leaves of apple trees, such as the following: 1 Rot: Root rot is a disease caused by fungi, which will cause root rot and gradually weaken the function of absorbing water and nutrients. When diseases occur, the roots of apple trees will get sick, resulting in dry leaves. Usually, only one tree or branch is displayed. When the root system is dug up, you can see that the peripheral root system is necrotic, which mainly shows that the whole leaf turns yellow and withers. Most of the causes of apple root rot are low temperature, high humidity and insufficient light. If the soil where apple trees are planted is sticky, easy to harden and poorly ventilated, the growth and development of roots will be hindered and it is easy to get sick. Or the harm of underground pests or improper treatment of planting wounds, bacteria invade from the wounds, causing root diseases. For example, pay attention to field drainage in rainy season to avoid waterlogging and rotten roots. If root rot has occurred, attention should be paid to spraying pesticides for treatment. 2. Potassium deficiency: high salt content or insufficient potassium in soil leads to leaf edge scorching. The symptoms of potassium deficiency in apple trees are mainly that the edges of basal leaves and middle leaves are bluish yellow and often curl upward. When potassium deficiency is serious, the green part of the leaf edge turns brown and is burned. In severe cases, the whole leaf is burnt and hung on the branch, which is not easy to fall off. Diagnostic points: pay attention to the symptom leaves of apple trees. If the yellow leaves are in the middle and lower leaves, it may be potassium deficiency. If the upper lobe shows the same symptoms, it may be calcium deficiency. For example, the edges and green parts of potassium-deficient and scorched apple trees are clear, and the parts without scorching can still grow normally. However, root rot caused the leaf edge to scorch, and there was an obvious reddish-brown halo zone between the diseased and healthy parts. Leaf spot causes the leaf edge to scorch, and the diseased part is gray, small black particles and easy to peel. If the apple tree is diagnosed with potassium deficiency, sufficient organic fertilizer can be applied in autumn. At the beginning of young fruit expansion period, 20-25 kg of potassium sulfate or 0/5-20 kg of potassium chloride/kloc-per mu should be topdressing. Spraying 0.2%-0.3% potassium dihydrogen phosphate aqueous solution or 1%-2% potassium sulfate or potassium chloride on the leaves. Calcium deficiency is mostly in the fruit-bearing period of plants. At this stage, plants need a lot of nutrients, which can be prevented by topdressing. 3. Wind damage: In Chuqing, heavy rain, high temperature and high transpiration lead to wind damage, water loss and dry leaves. A similar situation happened to a flower friend. His apple tree has been dry for almost a month, but it coincides with the rainy season. It was calm after the storm. During this period, Huayou didn't spray any pesticides, and there were no diseased spots on the apple tree. This reason is caused by uneven weather, just like indoor potted plants. Water often accumulates in potted soil. Exposure to the sun immediately after water accumulation, especially in hot and rainy environments. This situation can be avoided by sheltering from rain and shading and adjusting amb.
Plants are like people. Although Huayou's maintenance measures are not a big problem, the environmental conditions are there. If you try to adjust them, the flowers and plants will naturally turn green. 4. Pesticide damage: improper spraying, high concentration or spraying at noon will cause leaf damage. This situation can be avoided by appropriately increasing water quantity and diluting flower fertilizer. 5. Infectious diseases: such as anthracnose leaf blight and early defoliation. At first, they were all diseased spots, and then the diseased leaves dried up and fell off. In this case, spraying apple trees in time is enough. Thanks for reading. Friends who like it can like it or share it. If you want to know more, you can pay attention to Uncle Gardener ~