What should be done if the leaves of the begonia tree turn yellow? How to deal with the yellowing leaves of the begonia tree?

How to deal with the yellowing of leaves on crabapple treesA brief knowledge about how to deal with the yellowing of leaves on crabapple trees, let's understand it together.How to deal with the yellowing of leaves on crabapple treesIf the crabapple tree is not properly cared for, it can lead to yellowing and falling of leaves. There are many reasons for this problem, with some common ones being improper watering, lack of trace elements, insufficient or excessive sunlight, and improper fertilization. These issues need to be paid attention to during the maintenance process. Watering should be moderate, as should fertilization, and care should be taken to avoid direct strong sunlight.What causes the yellowing of leaves on crabapple treesH crabapple belongs to the Rosaceae Apple genus. Most crabapple species are ornamental trees used for urban greening and beautification. They prefer sunlight but can tolerate semi-shade, are cold-resistant, and not picky about the environment. They thrive in loose, fertile, deep-soil, well-draining sandy soil. Improper maintenance or occurrence of diseases and pests can lead to yellowing and falling of leaves, causing the plant to become wilted.Common reasons for the yellowing of leaves on crabapple trees1. Improper watering: During the high-temperature dormant period in summer, the soil should be slightly dry and not too moist for the crabapple. Therefore, watering should be reduced, otherwise, it can lead to leaf drop and stem withering, and the entire root system may rot, eventually causing the whole plant to die. Soil that is too dry can lead to soil compaction, preventing the roots from breathing, resulting in leaf wilt.2. Lack of trace elements: During the growth of the crabapple, a lack of certain trace elements may hinder growth. For example, a deficiency of iron can cause leaves to turn yellow. A lack of magnesium can also lead to yellowing of leaves. These trace elements are essential for the synthesis of chlorophyll.3. Insufficient or excessive sunlight: crabapple flowers enjoy sunlight and are also not shade-tolerant. Insufficient sunlight can prevent the synthesis of chlorophyll in the leaves, causing them to turn yellow. Under high summer temperatures, exposure to strong sunlight can burn the leaves of the crabapple, leading to withering.4. Improper fertilization: During the growth period of the crabapple, fertilization is necessary. If fertilization is insufficient and no base fertilizer is applied, the plant may become stunted, the leaves may become thin and pale or turn red. Excessive fertilization can lead to fertilizer damage, and the leaves will also turn yellow. Applying too much fertilizer during the summer dormant period can also cause leaf yellowing.Methods and techniques for dealing with the yellowing of leaves on crabapple treesIf the yellowing is caused by unreasonable watering, adjust the amount of water accordingly; if it is due to insufficient sunlight, increase the time it spends in the light; if it is due to unreasonable fertilization, adjust the amount of fertilizer accordingly; if it is due to inappropriate temperature, provide appropriate shading or increase the temperature.How to prevent the yellowing of leaves on crabapple trees1. Reasonable watering: Reduce watering during the summer dormant period of the crabapple tree, but you can spray water around the edge of the potting soil. However, do not completely withhold water. During the normal growing period, ensure the plant's water needs are met.2. Reasonable fertilization: Fertilize the crabapple in early spring and after the leaves fall in autumn to supplement nutrients. You can use some specialized fertilizers. If it has been a long time since the last fertilization, apply a dilute liquid fertilizer or compound fertilizer once a week.3. Reasonable sunlight: Avoid exposing the crabapple to direct sunlight during high summer temperatures. When moving the plant indoors in winter for insulation, make sure to place it in a sunny spot and not in a dark corner.The above is a detailed introduction to how to deal with the yellowing of leaves on crabapple trees, did you get it?