Fruit trees scraped rough skin early spring

Scraping the rough and old skin of the fruit tree can effectively prevent the occurrence of rot disease and ring disease, and can eliminate a large number of mites, germs and eggs in the old skin, and make the weak tree return to life. The rough skin can be carried out in the dormant period before the leaves of the fruit tree fall to the pre-emergence stage. Practice has proved that early spring scraping is better than winter, especially in alpine regions, which must be scraped in early spring to prevent frost damage. Since many natural enemies start to move earlier than pests, in order to protect natural enemies, the skin should be properly delayed before germination.

Which trees are suitable for scraping? Old trees, premature aging trees, and saplings with old skins need to be scraped. The main part of the scraping is the trunk and the base of the main branch.

The rough skin should be mastered with the principle of “redness and no whiteness”, that is, it is better to scrape the red endothelium. The lack of red indicates that the shaving is shallow, and the white indicates that the shaving is deep, the former is poor, and the latter is weakening the tree. Tree species, different ages, different degrees of scraping, such as white dragon apple trees should be heavy, red Fuji apple trees should be light; old trees, premature aging trees should be heavier and deeper, the first fruit trees should be shallower and lighter.

After the fruit tree is scraped, the affected area should be coated with methyl thiophanate or a 5 degree stone sulphur mixture or whitening agent (lime: water: stone sulphur mixture: salt = 10:36 to 40:2:1 to 2) to prevent invasion of the bacteria.

When pests in orchards are serious, it is important to consider protecting natural enemies. In the first year of winter, the coarse old skin of the top of the three main branches can be scraped off, and they will be burned or buried deeply. In the early spring of next year, the rough skin of the middle of the three main branches and the main trunk will be scraped off, and the rough skin will be scraped first. Near the orchard, the natural enemy will burn out or bury it when the pests have not yet moved.

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