Flowing gum is a common physiological disease commonly found in fruit trees. This disease not only affects the quality and yield of fruit, but also affects the normal growth and development of trees. When a fruit tree has a gum disease, it should be prevented early. After the test, the effect of scraping the glue in rainy days is remarkable.
(1) The occurrence of gum disease is mainly caused by pests and diseases, improper fertilization (such as direct application of human urine and feces, or excessive application of urea fertilizer), poor drainage, excessive summer pruning, and severe winter frost damage. And caused by factors such as sunburn and excessive results. The site of the disease is slightly swollen. After the wood becomes brown, a transparent gel is secreted from the lenticels or wounds. The contact with the air gradually turns yellow-brown to brown, and finally becomes a black lumps. The bark of the diseased part is rough and cracked, and it is not easy to heal. When the disease is serious, the tree is weakened quickly, and even the whole plant is dead. Glue disease mainly affects peach trees, plum trees, apricot trees, plum trees and other fruit trees. The damage is the main stem and main branches of these fruit trees.
(2) The prevention and control of gum disease is carried out in the rainy days of spring, summer and autumn. In this period, using the glue to meet the rain when the rain is soft and soft, use a knife to gently scrape the flow gel, and at the same time use a small piece of surface to contact the colloid, the scraped flow glue should be transported out of the orchard and buried deeply to prevent the spread. . After the weather turns fine, the scraping wound is quickly sprayed with 5 degree stone sulfur mixture or 75% chlorothalonil 800 times solution for cleaning and disinfection. This will not only eliminate the disease, but also protect the normal growth and development of fruit trees.
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