柑桔溃疡病是日本晚生柑桔和甜橙类的最大病害,为了防治这种病害,日本的有关人员曾作了极大的努力,但至今还没有找到根本的解决办法。现在防治溃疡病所使用的药剂,主要是 Citrus canker disease is the most serious disease of Japanese late-stage citrus and sweet orange. In order to prevent this disease, great efforts have been made by relevant Japanese personnel, but so far no fundamental solution has been found. Now used to prevent ulcer disease agents, mainly