A Detailed Guide to the Causes of Yellow Leaves on Cherry Trees and the Latest Control Methods
During the growing process of cherry plants, yellow leaves often appear, and sometimes leaf drop and tree death also occur, bringing huge economic losses to fruit growers. Therefore, in order to prevent this situation from happening, you must first understand its causes, and then treat the problem accordingly to completely eradicate it. Now let's take a look at the causes of yellow leaves on cherries with the editor.
1. Yellow leaves from nutrient deficiency
When cherries are deficient in nitrogen, the old leaves turn yellow, showing loss of green and yellowing, and finally fall off; when cherries are deficient in iron, it can also cause yellow leaves, showing that among the new leaves at the top of the crown, only the veins are green while other parts are yellow-green or yellow-white, the leaves are small and thin, and the leaf margins also scorch and fall off in large numbers; zinc deficiency in the plant can also lead to yellow leaves, showing normal veins with yellowing leaf tissue, developing horizontally along the veins, strip by strip.
Control methods: For yellow leaf symptoms caused by nutrient deficiency, the best control measure is to supplement the corresponding elements so that they recover. For yellow leaves caused by various nutrient deficiencies, supplement the needed elements in a targeted way, and the required elements can be supplemented by foliar fertilizer.
2. Yellow leaves from pests and diseases
When the plant is harmed by viral diseases, the leaves appear yellow in alternating dark and light shades, with unclear margins, or appear in bright yellow patches of different sizes with stripe-like spots, and the leaf veins turn yellow and lose green, with relatively wide bands or fine dense reticulate patterns, and the veins have a yellowing border. Yellow leaves caused by root rot are small and yellow, and the leaves will all turn yellow and scorch within a few days. When cherry saplings suffer from one or more pests, yellow leaves can also appear.
Control methods: Great importance must be attached to the control of pests and diseases. When pest or disease damage is found, control it promptly, strengthen fertilizer and water management, and help it recover.
3. Drought and lack of water
When the climate is severely dry and water is lacking, because the water supply to the fruit tree is insufficient, the leaves will dry up and turn yellow due to lack of water.
Control methods: During dry weather, do a good job of water management, water in time, and keep the soil supplied with water, but do not water too much at one time. After irrigation, loosen the soil appropriately to maintain soil permeability. During the rainy season, pay attention to drainage to avoid water accumulation that causes root soaking and leads to disease.
4. Fertilizer damage and pesticide damage
Fertilizer damage and pesticide damage often also cause yellow leaves on cherry fruit trees. This happens when too much fertilizer is applied, or when fertilizer is applied too close to the root system, or when the concentration of sprayed pesticide is too high and the dosage is too large. When fertilizer damage and pesticide damage occur, they mostly show as yellowing at the leaf tips and leaf edges, later turning rust-colored.
Control methods: When fertilizer damage and pesticide damage occur, you can irrigate in time to dilute the pesticide and fertilizer concentration and reduce the damage, or spray growth regulators to alleviate it, with relatively good results.
The above is an introduction to the causes of yellow leaves on cherries and the control methods. We hope it can help you. If you want to learn more related knowledge, please keep following us.