Detailed Explanation of the Causes and Solutions for Cilantro Leaves Turning White

Cilantro is a common garnish in our daily lives. It has a short growth cycle, can be brought to market all year round, and is planted over a fairly wide area. During cultivation, many people often encounter some abnormal phenomena, such as leaves turning yellow or white. What causes this? Let's find out together.

1. Continuous cropping

Cilantro cannot be grown as a continuous crop. If cilantro is planted repeatedly in the same plot, its root system becomes extremely thin and weak, and the roots are relatively shallow, so the plants become short and spindly due to a lack of nutrients. Because the roots are weak at absorbing water and fertilizer, while the plant's demand for nutrients increases as it grows, the leaves gradually turn yellow or white from a lack of water or nutrients. The solution is to avoid continuous cropping as much as possible and carry out rational crop rotation.

2. Excessive temperature

Cilantro prefers a cool environment, and the suitable temperature for growth is around 18 degrees. Once the growing environment exceeds 20 degrees, its growth becomes slow, and if the temperature exceeds 30 degrees, its growth will be stunted, and in severe cases it can even cause its leaves to turn yellow or white. Therefore, when temperatures are high, temperature regulation must be done well, lowering the temperature to the period suitable for cilantro growth.

3. Improper fertilization

To increase yields, many farmers usually apply base fertilizer when planting. However, if the base fertilizer is an unfermented mixed fertilizer, it will release a large amount of heat during decomposition, causing root burn, damaging the root system, and thereby causing the leaves to turn yellow or white. For this phenomenon, special attention must be paid when fertilizing: farmyard manure must be piled and fermented before being applied to the field, and if it is a compound fertilizer, it should not be applied in excess at one time.

4. Insect pests

Cilantro can also suffer from some diseases and insect pests during cultivation. For example, some insect pests can cause the leaves to turn white. Aphids or red spiders gather on cilantro leaves and continuously suck the sap from the leaves, and white spots appear on the parts they have fed on. In severe cases, the leaves become yellowed, photosynthesis is also affected, and the entire leaf gradually turns yellow and dries up. Once insect pests are found, they must be controlled promptly. Usually, some foliar fertilizer or abamectin should be sprayed to increase the plant's disease resistance and reduce insect pests.

The above is an introduction to the causes and solutions for cilantro leaves turning white. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.