Apple tree rot disease is also called apple tree rotten disease. It not only affects fruit tree production, but also significantly reduces the quality and nutritional value of fruits. It has always plagued farmers. Recently, the reporter interviewed the professor of Yangling Vocational and Technical College and Ma Zhifeng, an expert on fruit and fruit, on this issue and asked him to recruit for the majority of farmers.

Strengthening cultivation management Ma Zhifeng stated that the severity of branch diseases often depends on the strength of the tree. Farmers need to take appropriate measures to strengthen orchard management: attention should be paid to the pruning of the orchard to be moderate and not excessively pruned so as to prevent germs from invading from the pruning wound; Prevent insect pests such as locusts and ants in time to reduce the spread of germs; irrigate the roots during plant germination, strengthen and correct roots to strengthen the tree body, prevent the invasion of pathogens, increase organic fertilizer, prevent partial application of nitrogen fertilizer, improve soil structure to enhance the body Its own disease resistance.

Elimination of bacteria source early spring cure lesions, if found rot lesions should be timely curettage. Ma Zhifeng suggested that for the lesions that are more severe and penetrate the epidermis, according to the thickness of the stems, it is required to scrape the surface beyond the lesions, scrape horizontally by 1 cm, longitudinally scrape by 3 cm; it is appropriate for lesions only in the phloem. The discolored bast tissue needs to be completely scraped off, and then use the "Corruption Corruption" to apply evenly to the lesions and place the disease at a heavy point, and then apply it again after 3 days.

Chemical control: When the fruit tree is germinated, it is necessary to spray a mixed drug for controlling pests and diseases, spray the fruit tree with Baume 4-5 degrees lime sulfur, and control most of the fruit tree diseases; or use 100 times 40% Fumei arsenic spray, focus on spraying. Large branches, main branches, and trunks with thicker eggs must be sprayed before flowering. Ma Zhifeng reminded: "The medicines with good absorption and permeability should be sprayed at a reasonable time so that they can penetrate deep into the bark and achieve better results."

The source of the septum "Rotten pathogens are generally invaded by wounds. Asphalt can provide good protection against the wound and isolate the tree from the source of the disease." Ma Zhifeng recommends that farmers can choose to use asphalt to apply wounds after scraping the wound. In order to close the wound.

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