In recent years, apple rot disease has become a devastating disease affecting apple production. Recently, many fruit growers called for advice on how to prevent apple rot disease. According to the analysis of the growth status of fruit trees in the field, most of the current apple rot rots are serious crops. Most of them are mature fruit trees in the high yield stage of full fruit. According to the analysis of the ages, these older apple trees have reached the age of rot disease. In addition, in the management of fertilizer and water in orchards in the past few years, most of the fruit growers tend to focus on the use of nitrogen fertilizers and quick-acting fertilizers. The use of organic fertilizers is seriously insufficient, resulting in a gradual weakening of the disease resistance of trees. In addition, due to the relatively high price of apples in recent years, many fruit growers have been pursuing their output, and the amount of fruit left is generally too high. However, the supply of fertilizer and water is insufficient, and the overall nutrient level of the tree declines, which also aggravates the occurrence of rot disease. Generally every spring is the most serious period of apple rot disease infestation and the critical period of prevention and control, especially after the cold injury and high-yield disease, the disease can easily become a pandemic. Therefore, the current prevention of apple rot disease must be done. First of all, we must strengthen cultivation and management. Due to continuous drought this winter, irrigation should be performed early on the basis of increasing organic fertilizers in order to increase tree vigor. Second, fruit tree pruning (recutting) must be conducted in a timely and reasonable manner. Through reasonable pruning, the structure of the tree is adjusted, the tree vigor is balanced, the nutritional status of the shoot buds is improved, the stability of the fruit is promoted, and the resistance of the tree body is enhanced. After trimming, the larger cuts should be painted and protected after disinfection. Again, cure the lesions. For the rot disease spots on the branches of trees, they should be promptly scraped and cured after the discovery. Before the curettage, plastic films should be laid under the trees to receive the diseased skin scrapes. The scraping process of the trees should be performed on the cutting tools and diseases. The spot was repeatedly sterilized, and after the last time the disinfectant was air-dried, the edge of the spot was scraped and cleared and then disinfected again. The commonly used agents include the “843†rehabilitation agent and “double effect spiritâ€. After the lesions are processed, the diseased skin lesions are concentrated and burned. In recent years, the scientific research department has successfully developed a new type of special-purpose artificial bark (Guo Shukang) for the prevention and control of apple rot disease, and it is popularized and applied in the production area of ​​fruit trees. The product contains a large amount of humic acid and trace elements, can promote wound healing, prevent water loss in the wounded part of the tree, pre-preservation rotten bacteria invasion, and generally recognized by farmers. Finally, clean up the pastoral For the sick and dead branches cut off, they should be promptly cleaned up and then brought out of the park and destroyed. The fruit branches under the cut saw should not be stacked in the garden, nor can they be used as fruit sticks to open the angle of the fruit stick or as a hedge around the orchard so as not to spread germs.
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