Chinese crabapple trees, known for their elegant appearance and vibrant blossoms, are often hailed as the "immortal flowers" and "flowers of noble concubines," earning admiration from many enthusiasts. However, during the care process, some growers have noticed the occurrence of yellow leaves on their Chinese crabapple trees. Let's explore the reasons behind this phenomenon together.
Understanding Yellow Leaves on Chinese Crabapple Trees
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Improper Watering: Overwatering Chinese crabapple trees can lead to root rot and subsequently cause yellowing of the leaves. While Chinese crabapple trees require sufficient water during their growth, excessive watering resulting in waterlogged soil can lead to root rot.
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Inadequate Sunlight: Insufficient sunlight or excessive exposure to intense sunlight can also cause yellowing of Chinese crabapple leaves. Chinese crabapple trees thrive in sunlight, and prolonged placement in shaded areas can result in leaf wilting and yellowing, while excessive sunlight exposure can lead to sunburned leaves.
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Inappropriate Temperature: Chinese crabapple trees thrive in temperatures ranging from 18°C to 25°C. Extreme temperatures, whether too high or too low, can result in leaf yellowing. High temperatures can cause heat stress, while low temperatures can lead to frost damage.
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Deficiency in Micronutrients: Micronutrient deficiencies such as iron and magnesium can inhibit chlorophyll synthesis, leading to leaf yellowing.
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Improper Fertilization: Excessive or inadequate fertilization, as well as the use of fertilizers with high concentrations, can result in yellow leaves on Chinese crabapple trees. Excessive fertilization can cause root burn, while insufficient fertilization can hinder growth
Above are the reasons behind the occurrence of yellow leaves on Chinese crabapple trees. In addition to the mentioned factors, poor ventilation conditions can also promote the growth of pests and diseases, leading to leaf yellowing. It's essential to address these issues promptly.
