When is the second growth peak of grapes?
You may not be familiar with the introduction of the second growth peak of grapes in the aspect of green plants and flowers. Keep reading to find out more!
When is the second growth peak of grapes?
The period from June to July is very important for grapes. This is the second peak of fruit growth. Therefore, the quality of management directly affects the yield and quality of grapes. So, how to manage effectively? Let's find out.
Fertilization and Water Management
Fertilization and water management for grapes in June is necessary. The young fruits require abundant nutrients for their growth and development during this period. Therefore, it is important to supplement fertilizer in mid-June and before fruit coloring, which is significant for the secondary expansion of fruits, improvement of fruit quality, and the maturity of new shoots.
Disease and Pest Control
June is the rainy season, with high rainfall, humidity, and temperature, making fruits susceptible to diseases and pests, especially (T-J) disease and white rot. Therefore, it is necessary to apply pesticides promptly after rain, when leaves are dry, and after application of pesticides if it rains again.
Thinning Management
Timely thinning not only ensures that the grapes have uniform size, good coloring, neat clusters, and consistent maturity but also improves the commercial quality and sales price of grapes. This is a simple and effective measure to increase yield and income.
Grape Bagging
Grape cluster bagging in June is a key task. It is essential to spray a fungicide and insecticide before bagging to prevent the occurrence of diseases and pests inside the bags. On sunny days, the best time for bagging is between 9-11 am or 2-6 pm. Bagging should be avoided after rain in high temperatures and after consecutive rainy days followed by sudden sunny weather, as it can exacerbate sunburn. Generally, it is best to bag the fruits 2-3 days later to adapt to the high-temperature environment.
Bagging Method: After the pesticide solution has dried, open the paper bag with your hand to make it puff up, then place the whole ear from bottom to top into the bag, shrink the bag opening to the ear柄 (should be "peduncle" or "stem"), and tie it securely with one side of the sealing line.
The above is the management technique for grapes in June. During this period, as long as you do a good job of fertilization and water management, disease and pest control, and thinning management, high yield and quality in the later stage will be well guaranteed.
The above is the related content about when the second growth peak of grapes occurs, for the reference of green plant enthusiasts, hoping to solve your problems in green plant and flower management.