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芋是揭阳市的传统蔬菜作物，潮汕香芋也是著名品种，常年种植面积约200 hm2。20世纪 80年代以来，芋疫病严重发生，─般年份发病率30％～70％，重发病年份发病率达100％，使芋的产量受到巨大损失，甚至绝收。 芋疫病属藻菌纲疫霉属的真菌。是芋最重要的─种病害，在多雨高?
Taro is a traditional vegetable crop in Jieyang City, Chaoshan is also a famous variety of taro, perennial plantation area of about 200 hm2.20 20th century since the 80s, serious occurrence of taro disease - year-old incidence of 30% to 70%, incidence of relapse year incidence Up to 100%, taro production suffered huge losses, or even absolute. Taro disease Phylum Algae Phytophthora fungi. Is the most important taro - a disease, in the rainy high?