Why Tree Leaves Are Yellow? Delve into 5 Main Causes and Solution Urgent Edition

Natural Alarm: When a leaf starts to change color, as a botanist with more than 10 years of experience, I often get repeated questions: 'Why do trees that have just bought leaves start to yellow?' Many people are shocked and think that the tree is dying. But in fact, 'yellow leaf syndrome', or as botanicals call it, Chlorosis is a form of communication of plants to say that they are not well.

1. Overwatering - The number 1 hit cause. This is a good hope that kills the tree a lot. Watering too often causes the planting material to drip and there are no gaps to air. As a result, the roots lack oxygen and start to rot. When the roots are broken, the plants cannot absorb nutrients to feed the leaves. The leaves start to yellow from the bottom to the top and have a soft, bruised yellow appearance.

2. Nutrient Deficiency, plants need food not different from people. If you grow in the same pot for a long time, the nutrients in the soil will be exhausted.

Nitrogen deficient (N): Old leaves below are pale yellow, whole leaves lack magnesium (Mg): leaves are yellow only between leaf lines, but leaf lines are still green.

3. Light Stress. Each tree has different needs for light. If it is exposed to too little light, the plant cannot photosynthesize and the leaves will start pale yellow to reduce energy consumption. On the other hand, if the sun is too strong for the umbrella wood, the leaves will develop 'sunburn' (Sunburn) as dry brown or yellow spots.

4. Pests and Diseases, aphids, red mites or fungi are the main factors that suck the vitreous water from the leaves. Observed from the leaves, there are small yellow spots or white stains under the leaves. If left, the symptoms will spread until the leaves fall out.

5. Natural Senescence. Don't be shocked if the yellow leaves are only one or two of the oldest leaves at the root of the tree, and the new leaves are beautiful. This is the normal life cycle of deception to bring nutrients to the top.

The table summarizes how to fix the problem of yellow leaf, cause, prominent symptoms, how to fix water beyond soft yellow leaf, stinking root, stop watering, change planting material that drains bile, lack nutrients, consistently pale yellowish, or yellowish between leaf lines, always fertilize formula or slow-melt fertilizer, not enough light, leaf.

# Yellow card # How to care for trees # Plant diseases # Dad, the Garden # Air purification tree

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