Are the leaves of the plants yellow? What is chlororsis, causes and how to treat it

When we see that some leaves of the plants (especially the new ones) in our garden or garden do not have the same greenness as the rest, but have a yellowish tone throughout the leaf or in some parts, it is called chlorosis . It is something that happens relatively frequently.

What is chlorosis?

Chlorosis is the lack of chlorophyll in the plant, which is what gives the leaves their characteristic green color and which intervenes in the photosynthesis process .

Chlorosis begins as a slight lightening in the color of the leaf and can happen, when it has persisted for a longer time, to completely yellow the leaf, to dry it or even to not appear flowers or fruits. Furthermore, these leaves get sick more easily due to their weakness and are more prone to being attacked by pests .

If the chlorosis is not solved, it can cause the death of the plant.

> Read the lunar phases and organic farming

Causes of chlorosis

– Soil too alkaline

– Bad drainage, water stagnation.

– Low temperatures

– Diseases (rot) or pests ( nematodes ) in the roots

– Poor development of the roots due to not having enough space

– The use of synthetic chemicals

– The plant does not get all the nutrients it needs: it may be a lack of iron ( iron chlorosis ), iron deficiency begins in the youngest leaves and from the outermost part (edges) to the inner part of the leaves. While magnesium and zinc deficiencies begin in mature leaves and extend to the edges.

– Excess concentration of elements in the soil such as zinc, phosphorus, copper or calcium, or even a lack of potassium, can cause iron to not be properly absorbed.

How to treat chlorosis

– Carefully remove leaves that are already very affected, as they are weaker they will attract diseases and pests that will attack the entire plant and nearby plants.

– If it is due to poor drainage or compaction of the soil, work must be done by aerating it and decompressing the earth so that there is better water circulation. It is also convenient to mulch or mulch

– It is important to know the pH of the soil and to know its characteristics and how to correct it

– If you have the plant in a pot, it may be time to move the plant to a pot with a larger surface area. One of the reasons for chlorosis is the lack of space for the roots to develop, which is why, in urban gardens, it is usually common for the cause to be a container that is too small for the needs of the plant.

– If chlorosis can also occur during cold weather, here are some tips to protect plants from cold, snow, hail .

– If the problem is in root pests caused by nematodes, you can see how to avoid and fight nematodes in an ecological way . Nematodes are worms that feed on the roots of plants and can cause their death.

– The abuse of synthetic chemical products impoverishes the soils, which leads to poor plant development. Opt for homemade and natural solutions that will keep the soil fertile and in good condition, which will produce a favorable development of the crops.

– If the chlorosis is due to a lack of iron, you can make this homemade preparation with nettle to solve it. In addition, it helps to repel pests, so it will give you the extra protection that the diseased plant needs.

– To provide organic matter such as compost, humus, etc. I advise you, within your possibilities, to encourage yourself to make compost or humus that will highly benefit your crops.

– Another way to enhance the development of roots and make them healthy so that they can properly absorb nutrients is through mycorrhizae that we can contribute to our plants.


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