Applying whitening agent to the trunk and center trunk (about 1.5 to 1.6 meters away from the ground) and the large main branch (if necessary) will help the fruit trees to survive the winter safely. Whitening agent preparation ratio: 2 parts of quicklime, 1 part of solid stone sulfur mixture, half of salt, and 10 parts of water. Preparation method: first melt it with hot water, then add cold water to dilute and stir well. Can also follow the following formula: 30 kg of water + 10 kg of white ash + 2 kg of salt + 2.5 kg of animal oil + 1.5 kg of stone sulfur mixture stock solution. The whitening of the trunk can remove hidden germs and pests, reduce the occurrence of shoots and frost damage, and the whitening of young trees can effectively prevent hares from eating bark. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone Full-arch Teeth Whitening Light Full-Arch Teeth Whitening Light,Teeth Whitening Light,Blue Light Teeth Whitening,Teeth Whitening Led Light Rolence Enterprise Inc. , https://www.rolencedent.com