近几年来,套袋富士苹果的红点病一直困扰着我市的苹果生产。尤其是1998～2000年,连续3年的严重干旱,更加重了该病的发生。2000年红点病在栖霞的发生达到了高峰,最重园片病果率高达80％以上,全市平均发病率约在50％左右。重病果一个果实上有20～30处小红斑,严重影响了套袋果的外观质量和经济效益。2001年我市降雨量达到常年水平,红点病的发生情况明显减轻。但在瘠薄的丘陵山地果园,发病率仍然很高,达30％左右。 关于红点病的病因,笔者进行了多年的调查,查阅了许多国内外文献资料,从其发病症 In recent years, bagging Fuji apple’s red dot disease has plagued the city’s apple production. Especially from 1998 to 2000, three consecutive years of severe drought have worsened the incidence of the disease. The incidence of red dot disease in Qixia peaked in 2000, with the highest rate of disease-causing diseases reaching as high as over 80%. The average incidence in the city is about 50%. Serious consequences of a fruit there are 20 to 30 small erythema, seriously affecting the quality and economic benefits of bagged fruit appearance. In 2001, the rainfall in our city reached perennial level, and the occurrence of red dot disease was significantly alleviated. However, in barren hilly mountain orchards, the incidence is still high, reaching about 30%. On the etiology of red dot disease, the author conducted a multi-year survey, access to many domestic and foreign literature, from its onset