Apple tree rot disease is the most common disease occurring in the production of fruit trees. According to the survey, the orchards from the early fruit stage to the fruit stage have occurred to varying degrees, and even some saplings have rot disease. According to investigations, the improper management of the orchard, the declining tree vigor, the lack of nutrients in the tree store and the occurrence of frost damage are the main reasons for the occurrence of rot disease and the recurrence of old diseases. There are also many problems in the prevention of rot diseases in production, such as the lack of prevention alone, the emphasis on drug treatment, ignoring other comprehensive measures, and so on, which have made the rot disease worse and have caused a decrease in production and destroyed the garden. In order to effectively control the occurrence of rot disease and mitigate the hazards, some orchards promoted the application of the “skin scraping method†in the early fruit period and fruit period, and achieved good results.
1. Use the tool to scrape the bark (commonly needed for sharpening) that is commonly used in orchards, with a rot scraper.
2, scraping time 6-8 months each year.
3, the main part of the skin scraping site, the main branch from the base to the first branch of the branch, the main branch with the branches of the main branch angle (this part is most prone to rot disease).
4, scraping skin scrapes the epidermis part of the phloem (not scratching the old skin), after the scratch to expose the green. Slightly thicker to expose white, white can also be green.
5. Attentions The whole garden must be scraped whether it is a diseased tree or a healthy tree. After removing the disease, all tools must be disinfected before continuing operations.
Through observation, fruit trees treated with the heavy scraping method can generally form new tissues after 15 days, and the surface is smooth, and the skin is not formed for many years. The incidence and recurrence rate of rot disease are greatly reduced. If this measure is combined with other agricultural measures, it will surely achieve better control results.