一、引言麦仙翁、石竹科、麦仙翁属、也称麦毒草,学名 Agrostemma githago L麦仙翁是麦田中一种有毒性杂草,在世界上分布较广,东欧、中欧、非洲、北美洲、土耳其等都有发生。我国的黑龙江省东部、北部冷凉地区和吉林省的部分地区也有分布。我区主要发生于呼盟岭西地区、岭东也有少量发生。一九七九年在牙克石胜利大队红旗沟生产点的克旱五号小麦地中首次发现。近几年又陆续在该公社其他大队以及乌 I. INTRODUCTION Wheat Gerbera, Caryophyllaceae, wheat genus Wengun, also known as wheat poison grass, scientific name Agrostemma githago L. Wheat Weng is a toxic wheat weeds in the world widely distributed in Eastern Europe, Central Europe, Africa, North America, Turkey, etc. have occurred. China’s eastern Heilongjiang Province, the northern cold area and parts of Jilin Province are also distributed. My area mainly occurs in the area of ​​Hulu Lengxi, there is a small amount of occurrence in Lingdong. In 1979, it was first discovered in the land of Kham 5 on the production site of Hongqi ditch of Yakeshi triumph. In recent years they have one after another in the commune and other groups