美洲斑潜蝇是近年传入我国的一种检疫性害虫,全国大部分省区都已发生,为害逐年加重。美洲斑潜蝇与油菜潜叶蝇为害状十分相似,但也有不同之处,其主要区别如下。 1.为害时期不同 美洲斑潜蝇不耐低温,发育起点温度为13～14℃。油菜潜叶蝇较耐低温,每年2～3月油菜潜叶蝇即可为害,4～5 Liriomyza sativae is a quarantine pest that has been introduced into our country in recent years. Most of the provinces and autonomous regions in China have occurred and the harm has increased year by year. The leaf plugs of the United States are very similar to those of the rape leaf miner, but the differences are as follows. The main differences are as follows. 1. Harmful different American Liriomyza sativa can not tolerate low temperature, the development of the starting temperature of 13 ~ 14 ℃. Rape leaf miner more resistant to low temperature, 2 to 3 months a year canola leaf miner damage, 4 to 5