柑桔白粉病的发生与防治卢远华（四川省自贡市农牧局植保站６４３０００）近年来，笔者发现柑桔白粉病在自贡市荣县墨林乡发生严重，而本市其他地方没有该病发生。墨林乡属低山温凉多雨地区，海拔５００ｍ以上，峰岭起伏，相对高度在１００ｍ以内，最高海拔９０１ｍ。柑桔... In recent years, I found that citrus powdery mildew is serious in Meiling, Rongxian County, Zigong City, but not in other parts of the city. Molin countryside is cool and rainy area of ​​low mountain, elevation above 500m, peak ridge ups and downs, the relative height of less than 100m, the highest elevation of 901m. Citrus ...