Winter grape peeling three points

The scraping of old and dead bark of grapes in winter can not only eliminate the pathogenic bacteria and pests that overwinter in the cracks in the bark, but also reduce the incidence of diseases and insect pests in the coming year, and can also increase the tree vigor. However, the following points must be mastered in the winter seasoning of grapes:

First, scraping time. After the winter solstice and before the spring seizures, the best time is from the end of December to the next year and February. It is best to choose sunny and windless weather to avoid rainy days, so as to avoid the wind and rain that will blow off the pests.

The second is the depth of scraping skin. Squeegee should be appropriate, scrape off the main trunk and the main branches completely corked rough skin, split skin and trimming and branches of the residual skin, the depth is not white to be appropriate, to avoid damage to the endothelial layer; scraping In case of lesions, it should be thoroughly scraped and disinfected, and the scraped skin should be collected and burned or buried deeply.

The third is to apply white after shaving. After scraping the skin, apply the whitening agent and brush it again to kill pests and germs. The formula for whitening agent is: 10 parts of quicklime, 1 part of lime sulfur solution, 3 parts of salt, 0.2 parts of vegetable oil. Liberate lime, pour vegetable oil, add water into lime milk, and add lime sulfur and salt.

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