The cherry leaves turn yellow. what's going on?

Cherry planting can bring considerable benefits, but a series of problems need to be solved in the process. What's with the yellowing cherry leaves?

What's wrong with the yellowing of cherry leaves

There are many reasons why cherry leaves turn yellow. We can look at it from the following aspects.

1. Caused by 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.

2. Fertilizer damage caused by drug damage

Excessive fertilization or close to the root system, or the concentration of pesticide spraying is too high, too much medicine will lead to leaf yellowing, intuitive performance is leaf tip, leaf edge yellowing, after showing rust color.

3. Caused by diseases and insect pests

Yellowing occurs in varying degrees when eroded by fungi and viruses. The main performance is that the leaves are dark and light yellow, the edge is not clear; with striped spots, yellowing and chlorosis along the leaf veins, broad banded or fine reticulation; different sizes of bright yellow patches, the edge is clear.

Fruit trees will also have yellow leaves when they suffer from insect pests.

4. Lack of elements leads to

Cherry trees need a variety of trace elements to support their growth. Without a certain element, there will be different reactions. The old leaves of nitrogen deficiency lose green and yellowing, and finally fall off; only the veins of the new leaves in the upper part of the top of iron deficiency trees are green, and the other parts are yellow or yellowish green; when there is zinc deficiency, the veins are normal and the mesophyll is yellow.

Second, how to prevent the yellowing of cherry leaves

1. Prevention and control of water shortage: in dry weather, it is necessary to do a good job in water management, timely watering and maintaining soil application, but one watering should not be too much, soil can be loosened properly after irrigation, soil permeability can be maintained, and attention should be paid to drainage in the rainy season to avoid stagnant water retting roots and cause diseases.

2. Fertilizer damage prevention and control: when fertilizer damage and drug damage occur, it can be irrigated in time, alleviate the concentration of pesticide and fertilizer, reduce the injury, or spray growth regulator to alleviate, the effect is better.

3. Pest control: diseases and insect pests should be controlled in time. Foliar spraying 25% tebuconazole 4000 times + ketoconazole 1000 times + Aizengmei 30 jin water / 5ml, + amino acid foliar fertilizer 500ml, spraying the whole tree again after ten days, adding peach spirit to kill insects.

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

According to the situation to judge what is the cause of the leaves yellowing, in order to grow good quality cherries.