近日,湖南新宁县高桥镇金蚕村唐文清等读者来电,称有一种叫菟丝子的寄生性杂草在村里危害严重,周边的脐橙,柑橘树都快被这种黄色藤蔓给“吸干了”。为此,湖南省农科院杨水芝副研究员撰稿,对其防治方法进行介绍。菟丝子,是一种检疫性寄生杂草。全株无根无叶,茎攀缘性,呈淡黄色。菟丝子喜好阳光充足的开阔环境,其寄主范围很广,如杜鹃花、蔷薇、柑橘、马铃薯、花生和豆科牧草等旱地作物。菟丝子的种子有休眠作用,所以一旦果园被菟丝子侵入,会造成连续数年均遭菟丝子危害的问题。菟丝子一般于8~11月开花结果,种子落入土中经休 Recently, readers from Xinwen County, Hunan Province, Golden Silkworm Village, Tang Wenqing and other readers call, said there is a parasitic weeds dodder severely endangered in the village, the surrounding orange, citrus trees are almost always the yellow vine to "dry A To this end, Hunan Academy of Agricultural Sciences Yang Shui-zhi Associate Professor writer, its prevention and treatment methods are introduced. Dodder, is a quarantine parasitic weeds. The whole plant without root no leaf, stem climbing, pale yellow. Dodder favors a sunny, open environment with a wide range of hosts such as azaleas, roses, citrus, potatoes, peanuts and legumes. Dodder seed dormant, so once the orchard was dodder invaded, will result in consecutive years were the problem of dodder hazards. Dodder generally flowering in August to November the results, the seeds fall into the soil after the break