菟丝子又名无根草,旋花科菟丝子属一年生寄生性草本植物,叶片退化成鳞片状,无叶绿体,自身不能进行光合作用制造营养,依靠茎蔓攀爬依附在寄主植物上,在接触寄主的部位长出尖刺,戳入寄主韧皮部吸取营养。危害症状危害地被菊的菟丝子主要是中国菟丝子。正常生长的地被菊茎干粗壮、花色艳丽,一旦被菟丝子缠绕寄生以后,植株的生长发育将受到严重影响。菟丝 Dodder, also known as rootless grass, Convolvulus Dodder is an annual parasitic herbaceous plants, leaves degenerated into scale-like, no chloroplasts, can not be their own photosynthesis of nutrition, dependent on stems and climbers attached to the host plant, in contact with the host Spiked part of the site, poked into the host phloem to absorb nutrients. Harmful endangered Chrysanthemum dodder is mainly Chinese dodder. Growth of the ground to be dry stem thick stalks, beautiful colors, once the dodder winding parasitic after the plant’s growth and development will be seriously affected. Reeling