What if the leaves of Zhu Dinghong turn yellow?

Zhu Dinghong is a flower plant with good ornamental effect. The flowers are big and colorful, the plant type is beautiful, and the leaves are green. It is a good embellishment plant to decorate the house, but it needs careful care of Zhu Dinghong. If it is not maintained properly, the leaves will be yellowed, which will affect the effect of ornamental and beautification. Let's take a look at how the red leaves of Zhu Ding are yellowed.

the new supersedes the old

[reason] if the leaves of Zhu Ding Hong are yellowed properly, it is generally the normal metabolism of the red plant, and the old leaves will gradually turn yellow and fall off.

[methods] the normal metabolism of Zhu Dinghong does not need to change the maintenance habit, just cut off the old yellowing leaves.

Variety difference

[reason] there are many varieties of Zhu Dinghong, which is not inferior to tulips. Generally speaking, the leaves of Zhu Ding Hong are green all the year round, but the leaves of Phnom Penh are green with yellow stripes. If the leaves grow smoothly and normally, it is not caused by any disease, but by the difference of varieties.

[methods] the yellowing of leaves caused by different varieties only needs to be cultured normally.

Too much watering

[reason] Zhu Dinghong likes to be wet, but avoid stagnant water, no matter too much watering in pot or open field cultivation will cause leaves to yellowing.

[methods] Zhu Dinghong should not be watered frequently, and the basin soil should be kept slightly dry, but sufficient water should be provided during the growth period, and the soil with good drainage performance should also be used for planting to avoid stagnant water in the basin soil.

The light is too strong

[reason] Zhu Dinghong likes the light, but the light should not be too strong. Such as hot summer sun exposure, will cause leaf tip scorch, leaf yellowing.

[methods] Zhu Dinghong should be placed in a place where the sunshine is not strong to maintain or take appropriate shading measures in the middle of summer.

Improper fertilization

[reason] excessive fertilization of Zhu Dinghong or application of insufficiently mature organic fertilizer, especially under high temperature in summer, will cause fertilizer damage and make the leaves yellow.

[methods] Zhu Dinghong can not apply unfermented mature fertilizer or pure phosphate fertilizer.

Disease infection

[cause] when Zhu Dinghong suffers from leaf spot disease and leaf blight, it will also make the leaves yellow.

[methods] at the initial stage of the disease, 1000 times of topiramate or 1500 times of topiramate or 65% of Dysen zinc can be sprayed once a week for several weeks.

Pest damage

[reason] the main pest of Zhu Dinghong is the red spider. When the red spider appears, the leaves will be damaged and yellowed.

[methods] when there are few red spiders, they can be caught by hand, and when they are more serious, they can be sprayed with 1000 times of triclofenac EC.