洋芋作为一种粮、菜兼用的高产作物,近年来有了迅速发展,但病害防治仍是问题。除晚疫病和种薯退化是限制洋芋发展的重要因素以外,环腐病已上升为突出病害,须引起高度重视。洋芋环腐病是二十世纪初于德国发现的。我国在解放初期仅黑龙江省发现。由于“北种南调”而无严格的检疫措施,现在大多数省、市都有发生。今年我省曲靖地区普遍发生洋芋环腐病,尤以陆良、宣威、师宗、富源、罗平等县为重。以宣威县田坝公社为例,该公社种植13,200亩洋芋,六月中旬以来,有5,180亩 Potato as a food, vegetables and high-yield crops, with the rapid development in recent years, but disease control is still a problem. In addition to late blight and seed potato degradation is an important factor limiting the development of potato, the ring rot has risen to highlight the disease, to be highly valued. Potato ring rot was discovered in Germany at the beginning of the 20th century. Only in the early liberation of China found in Heilongjiang Province. Due to the “north-south transfer” without strict quarantine measures, most provinces and municipalities now have their places. This year, Qujing Prefecture, a common occurrence of potato ring rot disease, especially Luliang, Xuanwei, Shizong, Fuyuan, Luo Ping counties as the most important. Take Xuanwei County Tianba commune as an example, the commune has 13,200 mu of potato planted since mid-June, with 5,180 mu