What Causes the Leaves of Grapes to Roll Up?
A comprehensive explanation of why the leaves of grapes roll up, with some small tips on green plant maintenance. Let's understand this together next.
What Causes the Leaves of Grapes to Roll Up?
The rolling up of grape leaves is related to the unsuitable field temperature, the unsuitable soil environment, the obstruction of the grape roots' ability to absorb nutrients (S-Y), herbicide damage, gas hazards, and other conditions that affect the growth and development of the plant. This is commonly referred to as root burn, and the downward curling of grape leaves is also considered to be a symptom of grape leaf roll disease.
The rolling up of grape leaves is related to the unsuitable field temperature, the unsuitable soil environment, the obstruction of the grape roots' ability to absorb nutrients (S-Y), herbicide damage, gas hazards, and other conditions that affect the growth and development of the plant. This is commonly referred to as root burn, and the downward curling of grape leaves is also considered to be a symptom of grape leaf roll disease.
Reasons for Grape Leaf Roll
1. Over-fertilization: If too much fertilizer is applied, or if the fertilizer is too concentrated around the roots, it can damage the roots, causing the leaves to curl, turn yellow, and even become dry and crisp.
2. Water deficiency: Insufficient water in the plant can cause the leaves to curl, and in severe cases, they can become dry and crisp. 3. Physiological reasons that cause harm, such as damage to the roots, low temperature and dryness, or improper application of pesticides.
Dealing with Rolled-up Grape Leaves
1. The best time to water is when the weather is cooler, especially after 5 PM, which is most beneficial for the growth of grapes.
2. It is best to choose organic fertilizer for the base fertilizer, and some phosphorus and boron elements also need to be supplemented. These can be added as needed during the fertilization process.
3. In the summer, the transpiration of grapes is relatively strong. To maintain the water content within the plant, sunshades can be set up.
4. If caused by mildew disease and white rot disease, using fungicides in the early stage is recommended, such as captan, metalaxyl, and Bordeaux mixture.
Do you know the detailed reasons for the rolling up of grape leaves that were shared above?