Fruit trees scraping four should not be suitable

The scraping of old treetops by fruit trees is an effective measure to eliminate pests and rejuvenation. This measure is done well, pests can reduce by 70% to 80% over winter, more than 80% reduction in bacteria, the use of drugs in the growing season to reduce 1 or 2 times, cost-effectiveness. However, there are many problems in the scraping of bark by fruit growers. It is proposed that four should not be suitable for reference.

It is better to be late for most people to think that the sooner the scraping of the leaves from the fallen leaves to the flowering, the better. This view is wrong, because it takes several months before leaves fall to flowering. Early skin scraping on the one hand is due to the exposure of young tissue, wind and sun, and loss of water. On the other hand, it is equivalent to people After removing a layer of clothing, the ability to resist coldness is significantly reduced, so it is advisable to scrape the skin before germination.

Shallow depth should not be suitable for a deep part of the fruit grower is too deep and too heavy, so that the fresh and disease-free protective tissue is seriously damaged, affecting the normal growth of the tree, so the depth to just scratch the body to touch the old skin is appropriate, that is, white trees, The trees are green and do not scratch at disease-free places.

Should not be fine should not only scratch the trunk, the main branch into a piece of old warts disease body, more than a year old twigs should also be carefully observed, not missed a small tumor, because mung bean size tumors can produce hundreds of millions of colonies After the scraping of the whole tree, it must be checked again and again and again and again to achieve complete and complete aims.

Should not be used after the old skin scraping should not use the past effect is very good, high residue, high pathogenic disease, Fujim arsenic coating or spray, can be used pollution-free bio-pesticides 5 times the solution of citric acid or the use of pollution-free chemical synthesis of gum tree , Biofilm and other coating brushing sterilization protection, especially Paul gum, biofilm coating on the tree to form a film, the bacteria is not easy to invade and infect, the tree moisture is not easy to lose.

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