What should we do if the latest grape leaves turn yellow?

Grape is a kind of vine, there will inevitably be some problems in the process of planting, such as grape leaf yellowing is a common phenomenon, so what causes grape leaf yellowing? How to solve the problem? Let's take a look at the detailed introduction.

1. Improper watering

Grapevine lack of water or too much watering will cause leaves yellowing or withering, plant water shortage, leaves will naturally become less chlorophyll due to lack of water, leaves will turn yellow, while too much watering, too much root water absorption, weakening of oxygen transport, will also make the leaves yellow.

Solution: grape watering must be appropriate, the amount of water should be determined according to the weather, hot and dry summer, the need for regular watering, in the rainy season is not suitable for watering, but also pay attention to drainage measures, so as to avoid too much water in the soil.

2. Improper fertilization

In the process of planting, if improper fertilization, it will also lead to grape leaves yellowing, excessive fertilization will cause too much nutrition in the soil, plant fertilizer damage will lead to leaf yellowing, but fertilizing fruit, nitrogen, phosphorus and potassium nutrients in the soil will be guaranteed. Plants will also gradually turn yellow because of lack of nutrition.

Solution: the ordinary amount of fertilizer must be controlled, so that the application of light fertilizer frequently, fertilization should not be too frequent, especially in the application of phosphorus and potash fertilizer, we should pay attention to the appropriate loosening of the soil, so as to make his leaves green and luxuriant.

3. Drug damage

Grape will be disturbed in the process of growth, so many fruit growers will take medicine to prevent it, but sometimes improper medication will also cause plant leaves to turn yellow, which is drug damage, and the yellow leaf area caused by drug damage is larger, which will lead to plant death in serious cases. Great harm.

Solution: when administering medicine, we should pay attention to the method and drug concentration, when the drug damage occurs, we should water and spray the plant, reduce the drug concentration, increase the light time appropriately, strengthen photosynthesis to alleviate the drug damage, and make it recover.

4. Disease

When grape plants suffer from leaf spot disease, yellow leaves will also appear. Leaf spot disease is caused by some fungal and bacterial infections. This disease will cause local leaf necrosis and how to spread gradually. In addition, scale insects and red spiders can also cause the phenomenon of grape leaves yellowing.

Solution: when grape leaf spot occurs, the whole plant should be sprayed with 50% carbendazim 500 times in time, while scale insects and red spiders can be brushed with soapy water with toothbrushes and then sprayed with insecticides.

The above is the introduction of how the grape leaves turn yellow. I hope it can help you. If you want to know more about it, please follow us.