White walnut trees are commonly used

Walnut tree into the winter, combined with the pastoral cleaning, pruning, fertilizer and water management will be painted white walnut tree is a very important measure, and its role in addition to the common pest control beetles, moths walnut tumor, rot, dry rot, etc. , but also to prevent sunburn, frostbite, livestock bite and other effects. The commonly used formula for whitening agents is:

First, 10 pounds of lime, 2.5 pounds of salt, 1.5 pounds of sulfur (or copper sulfate), 0.2 pounds of animal oil, 0.1 pound of soybean flour or flour, 36 pounds of clear water. In the preparation, various raw materials are first opened with hot water, and then mixed thoroughly with stirring.

Second, 20 pound lime, 1 pound of copper sulfate, 50 pounds of water. Dissolve copper sulfate with appropriate amount of hot water and dilute it with water. The quicklime will be hydrated and turned into milky. When mixing, dilute the good copper sulfate into lime milk and mix well.

With a good concentration to apply to the trunk does not flow down, do not stick into the group as a standard, when brushing white must be uniform and tight. Within one year, the new plantlet leaves the whole tree outside the shoot with white, and the main stem below the first main branch can be applied for more than two years.

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