Lime Tree Leaves Turning Yellow?

The first thing that comes into your mind when you hear the word “leaves” is what do they mean? Do they refer to the green leaves of a plant or are they something else entirely?

The leaves of a lime tree (Citrus x citrosa) are not actually part of the plant’s body. They’re just there for decoration. When a lime tree loses its leaves, it means that the tree is dying.

It may seem strange to you at first, but if you think about it, all trees have their own set of leaves. You see them on trees around you every day. If a tree dies, then so does everything else living in the area. Trees don’t die because they get old; they die because they stop producing fruit and produce no more foliage.

When a lime tree stops growing new leaves, it turns from green to yellow.

What causes this color change?

The answer lies within the chlorophyll in the leaves. Chlorophyll is one of the main components that gives plants their vibrant colors. Without it, trees would turn completely brown or even go completely black! That’s why some people believe that when a lime tree starts losing its leaves, it’s time to move on and start looking for another place to live.

Green leaves begin to turn yellow when it’s time for the tree to start dying. This isn’t always caused by old age.

Sources & references used in this article:

The origin of melezitose: a biochemical relationship between the lime tree (Tilia spp.) and an aphis (Eucallipterus tiliae L.) by JSD Bacon, B Dickinson – Biochemical journal, 1957 – portlandpress.com

Effects of air pollutants on growth, leaf drop, fruit drop, and yield of citrus trees by CR Thompson, OC Taylor – Environmental Science & Technology, 1969 – ACS Publications

LIMEtree: Interactively Customisable Explanations Based on Local Surrogate Multi-output Regression Trees by K Sokol, P Flach – arXiv preprint arXiv:2005.01427, 2020 – arxiv.org

Abscission of reproductive structures and leaves of orange trees. by LC Erixckson, BL Brannaman – Proceedings. American Society for …, 1960 – cabdirect.org

Differential effects of 1-methylcyclopropene on citrus leaf and mature fruit abscission by L Pozo, R Yuan, I Kostenyuk, F Alférez… – Journal of the …, 2004 – journals.ashs.org

Etiology and epidemiology of citrus greasy spot by JO Whiteside – Phytopathology, 1970 – apsnet.org

Abscisic acid reduces leaf abscission and increases salt tolerance in citrus plants by A Gomez-Cadenas, V Arbona, J Jacas… – Journal of Plant Growth …, 2002 – Springer

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