辣椒疫病是由鞭毛菌亚门的辣椒疫霉菌(Phytophthora capsici)侵染所引起,近几年在我省及长江流域大量发生。1989年由于长江流域早春温度偏高,早夏温度偏低,入梅较早,导致辣椒疫病大流行,造成大面积减产。我市在大田于5月2日发现病株,以后迅速蔓延,使部分大田提前罢园,减产50％以上。调查同期武汉、宜昌、长沙、南昌、杭州、南京、上海等地均有不同程度发病。 Phytophthora capsici is caused by the infection of Phytophthora capsici, a major part of Phytophthora capsici in recent years. In 1989, due to the high temperature in early spring in the Yangtze River basin, the temperature in early summer was low and plum plum was earlier, leading to a pandemic of pepper epidemic, resulting in large-scale yield reduction. The city discovered the diseased plants in Daejeon on May 2 and spread rapidly thereafter, leaving part of the fields in advance of leaving the park and cutting production by more than 50%. Survey over the same period Wuhan, Yichang, Changsha, Nanchang, Hangzhou, Nanjing, Shanghai and other places have varying degrees of morbidity.