黄化病，是植物的一种病征。指茎叶的一部或全部退绿，而出现黄化或黄绿化的现象。
The chlorosis of camphor-tree is a common and serious disease in Shanghai city. It has the universal harm and seriously,lightly disease causes the plant growth to be blocked and the shape is abnormal.
黄化病是当前上海香樟树最常见的病害。
参考来源 - 香樟耐碱性种源筛选及上海地区香樟ISSR遗传分析初步·2,447,543篇论文数据，部分数据来源于NoteExpress
病毒病常分为几大类，即花叶病，黄化病，斑驳或条斑。
Viruses are often classified into broad categories as mosaics, yellows, mottles, and streaks.
近年来植物缺铁黄化病的普遍发生，影响了植物正常生长发育，尤其是果实的品质及人类的健康。
The popularity of iron-deficit chlorosis has affected the growing of plants and the quality of fruits, and finally the human health.
发生在宁夏甜菜上的一种病毒病的病株叶丛主要表现为黄化、焦桔和叶脉黄化坏死。
A virus disease of sugar beet occurred in Ningxia showing symptoms of yellows, parch blight and necrotic yellow vein of foliage leaves.
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