1. Check the lesions on apple trees after thawing in the early spring and find that dry or watery brown spots are scraped off with a knife. Scraping the skin to a height of 0.3 cm or more. The skin around the wound should be at a right angle. Then, use a brush to apply the raw sulphur solution to the affected spot. The new meat must be applied to prevent the re-infection of the disease. Immediately after the curettage, the skin of the diseased skin was brought out of the orchard and buried or burned.
2. After the thawing in the early spring, brown spot was found with a spatula to scrape off the spot in time. Apply raw soybean oil to the spot with a brush and apply it to the surrounding skin to prevent the re-infection of the disease.
2. After the thawing in the early spring, brown spot was found with a spatula to scrape off the spot in time. Apply raw soybean oil to the spot with a brush and apply it to the surrounding skin to prevent the re-infection of the disease.
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