芫荽俗称香菜，在芜荽生长发育过程中，田间同时会长出多种杂草，如马唐、狗尾草、牛筋草、马齿页、反枝页等。由于芜荽植株细小又多与杂草混生，所以用手工拔除，费时费力，效果不好。为了进一步筛选３３％莱草通乳油防治芜荽田杂草的最佳使用方法，永年县植保站２０００年进 Coriander commonly known as parsley, in the process of growth and development of the turnips, the field will grow a variety of weeds, such as crabgrass, Setaria, tendon grass, horse teeth page, anti-sticks and so on. As the small and many plants turnip mixed with weeds, so unplug manually, time-consuming and laborious, the effect is not good. In order to further screening 33% Laocong Tong EC weed control the best use of weed, Yongnian Plant Protection Station in 2000