新疆新源县是油葵种植大县,近年来经常有农民反映油葵长势不好。新疆新源县种子管理工作人员接到群众反映后,赶往田间进行现场调查,发现是油葵被列当的寄生植物寄生。现拟对列当的习性、特征等进行介绍,对其危害进行分析,并就如何清除寄生性杂草列当展开讨论。2013年7月8日,新疆新源县种子管理站执法人员接到新源县塔勒德镇八大队农民的投诉,原因是该农民种植的17 342 m2油葵长势很不好,植株矮小,花盘小,油葵根部冒出一 Xinyuan County, Xinjiang is a major oil sunflower planting county, farmers often reflect in recent years, poor growth of oil sunflower. Xinjiang Xinyuan seed management staff received the masses to reflect, rushed to the field for field surveys and found that oil sunflower parasites were listed parasitic. It is proposed to introduce the habits, characteristics, etc., to analyze its harm, and how to clear the list of parasitic weeds to start discussions. On July 8, 2013, Xinjiang Xinyuan County Seed Management Station law enforcement officers received a complaint from farmers in the No 8 Brigade of Tallaude Town, Xinyuan County, because the 17 342 m2 oil seeds planted by the farmer grew very poorly and the plants were short, Small disk, sunflower roots emerge one