喷施垦原霜疫净可防治马铃薯晚疫病马铃薯晚疫病又叫马铃薯瘟，是马铃薯的主要病害。该病的主要来源是前一年带病种薯病株叶片上的孢子囊。病菌在１３—３０℃温度下均可生长，相对湿度在９５％以上时，病菌即可大量发生。晚疫病主要侵害叶茎和薯块。发病初期先在叶尖或叶... Spray reclamation frost frost net can prevent potato late blight potato blight known as potato plague, is the main disease of potato. The main source of the disease was the sporangium on the leaf of the diseased potato disease the previous year. Pathogenic bacteria can grow at 13-30 ℃, relative humidity of 95% or more, the bacteria can occur in large quantities. Late blight mainly affects leaf stems and tubers. Early onset of the first tip or leaf ...