Protection of wound of jujube tree after opening nail

After jujube tree is opened, the young callus is often eaten by pests, resulting in long-term wound healing and affecting the restoration of tree vigor. After 15 to 20 days, apply dimethoate 400 times solution plus 0.2% sulfur powder to the nail mouth, and then seal it with wet mud, which can play the role of insecticide and sterilization, and is conducive to wound healing.