The causes and control methods of the latest cherry yellow leaves

The phenomenon of yellow leaves often occurs in the process of cherry plants, and sometimes there are the problems of fallen leaves and dead trees, which bring huge economic losses to fruit growers, so in order to prevent the occurrence of high situation, we must first understand the cause of its occurrence, and then prescribe the right medicine to cure it thoroughly. Let's take a look at the reasons for the yellow leaves of cherries with the editor.

1. Yellow leaves of deficiency

Cherry nitrogen deficiency will make the old leaves appear yellow leaf phenomenon, showing that the old leaves lose green and yellowing, and finally fall off; cherry iron deficiency will also cause yellow leaves, showing that only the veins of the new leaves on the top of the tree are green, other parts are yellowish green or yellowish white, the leaves are small and thin, and the leaf edges will scorch and fall off a lot. Zinc deficiency in plants can also lead to yellow leaves, characterized by normal veins, yellowing mesophyll and lateral development of veins.

Prevention and treatment methods: for yellow leaf symptoms caused by element deficiency, the best prevention and treatment measure is to supplement the corresponding elements and restore them. For yellow leaves caused by various elements deficiency, the required elements can be supplemented by foliar fertilizer.

2. Yellow leaves of diseases and insect pests

When the plant is harmed by viral diseases, the leaves are dark and light yellow, the edges are not clear, or are bright yellow of different sizes, with striped spots, salt veins turn yellow and green, have a wide band or fine reticulation, and the leaf veins have a yellowing edge. Yellow leaves caused by root rot disease, the leaves are small and yellow, the leaves will all turn yellow and scorched within a few days, cherry seedlings suffer from one or more pests, there will also be yellow leaves.

Prevention and control methods: attention must be paid to the prevention and control of diseases and insect pests, timely prevention and control of diseases and insect pests are found, and fertilizer and water management should be strengthened to recover.

3. Drought and water shortage

When the climate is seriously dry and short of water, the leaves of fruit trees will dry up and yellowing due to insufficient water supply.

Prevention and control methods: in dry weather, we should do a good job in water management, timely watering, keep the soil applied, but not too much watering at one time, loosen the soil properly after irrigation, maintain soil permeability, and pay attention to drainage in the rainy season to avoid stagnant water retting roots. cause disease.

4. Fertilizer damage and drug damage

Fertilizer damage and drug damage often lead to yellow leaves of cherry fruit trees, too much fertilization or close to the root system, or too high concentration of pesticides, too much medicine. When fertilizer damage and drug damage occurred, the leaf tip and edge were yellowed, and then showed rust color.

Prevention and control methods: when fertilizer and drug damage occur, it can be irrigated in time, alleviate the concentration of pesticides and fertilizers, reduce the injury, or spray growth regulators to alleviate, the effect is better.

The above is the introduction of the causes and control methods of cherry yellow leaves. I hope I can help you. If you want to know more about it, please follow us.