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Because of the lack of boron, shoot blight of Yangmei can be eliminated. Therefore, the planned boron supplement can eliminate the harm of the disease. Spraying 0.1 to 0.2 during the growth of bayberry. 2 Borax solution 2 to 3 times can effectively control the disease. Can also be used root, light boron deficiency, with 0.3 to 0.6 kg of borax per acre, a serious lack of boron, with 1.3 kg of borax per acre.