Grape day burns mainly occur on the ears. The fruit is damaged, and there are light brown patches on the fruit surface, which are enlarged and slightly sunken, and become brown, round, and dry edges with no obvious edges. The victim is vulnerable to anthrax. The fruit coloring period to the maturity period stops. The main reason is that in the absence of high temperature conditions of the leaves, the fruit is partially dehydrated and burned, or the leaves with high osmotic pressure are caused by the water contiguous for the osmotic pressure.
1. The choice of rack. The scaffolding should be selected. After the grapes are planted, the fertilizer and water should be increased to make them grow rapidly. In the second year, the scaffolding tree shape is formed, so that the ears grow under the frame surface to avoid direct sunlight.
2. Watering. After the fruit is placed in the fruit, the fruit is tender and tender in the first half of July. At this time, the temperature is low and the temperature is high, the air is dry, and the most common day is the burning disease. The light one burns out some of the fruit pieces, the heavy ones are necrotic, and the whole ear is dry. Water should be watered according to the weather conditions to reduce the temperature in the garden and reduce the daily burning.
3. Thinning flowers and fruiting and bagging. According to the ground force and the age of the tree, the flowers are scattered in time before the flower is separated. Remove excess fruit, spray the fungicide after thinning the fruit, and then bag. A waterproof, white paper bag should be selected, and a venting hole is left in the lower part of the paper bag. White paper bags have poor heat absorption and are safe to use. Avoid bagging high temperatures and dew periods when bagging.
4. Strengthen the management of fertilizer and water, and enhance the ability to resist Japanese burning. Grapes should be fertilized with water, organic fertilizer should be added, water should be watered at the right time, and pest control should be done well to make the tree strong and strengthen the ability to resist Japanese fever.
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