美洲斑潜蝇Liriomyzasativaeblanchard是危险性检疫害虫。天津市1996年7月16日在宝坻县首次发现，当年普查该虫在全市的12个区县均有不同程度的发生，全市总发生面积在4万hm2左右。经二年的普查，发现美洲斑潜蝇危害寄主已达29种植物，其中以瓜类和豆类受害较为严重。笔者在防治对策上提出了以化学防治为主农业防治为辅的技术方针，同时还提出适生温度防治、统防统治和正确对待冬季防治重点的观点。 Liriomyzasativaeblanchard is a dangerous quarantine pest. Tianjin City, July 16, 1996 first discovered in Baodi County, when the census of the pest in the city’s 12 districts and counties have varying degrees of occurrence, the city’s total area of ​​about 40,000 hm2. After two years of census, it has been found that the host has reached 29 species of host plants, of which melons and legumes are more seriously affected. The author put forward the technical guideline of chemical prevention and control based on agricultural prevention and control at the prevention and control measures, and also put forward the viewpoints of prevention and control of temperature, prevention and control and proper treatment of winter prevention and treatment.