Grape water bottle disease is also called color disease, and the northeast is called water red grain, which is a common physiological disease on grapes, especially in rose aroma, red earth and other varieties. How to properly prevent and cure grape water jar disease, Zhang Ligong, a research fellow of the Western Fruit Friendship Coalition, provided guidance for the majority of farmers.
Symptoms Water jar disease is mainly manifested on grape fruit grains. Generally, symptoms appear after the fruit is colored. After the onset, the colored varieties clearly showed abnormal coloration and light color, while the white varieties showed fruit vesicles, reduced fruit sugar content, taste acid, flesh softened, pulp and peel can be easily separated, the fruit becomes a packet of acid water With a gentle hand-kneading, water droplets are spilled in series, so there is a name for water jars. The morbidity and granules at the onset of the disease are prone to delamination and easily fall off. The etiology is mainly due to nutritional deficiencies and physiological disorders.
The onset rule is generally weak in tree vigor, excessive in load, low in fertilizer use, and low in effective leaf area. The disease is prone to occur; the groundwater level is high or the mature stage is in rain, especially after high temperature, when the humidity is high in the field, the disease Especially serious.
Control measures 1. Strengthen the management of soil and fertilizer water, increase the application of organic fertilizers and the application of phosphorus and potassium fertilizers from outside the roots, apply nitrogen fertilizers timely and appropriately, and keep the soil loose. 2. Control the load, reasonably determine the yield of individual plants, and increase the leaf-fruit ratio. 3. To protect the main tip leaves, the main tip leaves are the main source of nutrients needed for the fruits, especially in the case of leaving the second fruit, the secondary fruit often competes with the primary fruit for nutrients, and the lack of nutrients often leads to water jar disease. Therefore, on the diseased plants, the fruit grower must control the secondary fruit, leaving more leaves on the main tip.
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