Sept . 28 , 2006 ? the parasitic dodder plant doesn ' t have a nose , but it knows how to sniff out its prey ? attacking tomatoes , carrots , onions , citrus trees , cranberries , alfalfa and even flowers 寄生菟丝子并没有鼻子,但它知道如何嗅出它的猎物- - -它进攻番茄,胡萝卜,洋葱,柑橘树,酸果蔓果实,紫花苜蓿甚至开花的植物
The category , distribution , appearance characteristic , ecological and biological characteristic , damage trait and occurrence regulation of dodder are illustrated , on the basis of investigation and study of alfalfa dodder for many years 在对苜蓿菟丝子进行了多年调查研究的基础上，阐述了菟丝子的生物学特性、危害特点和发生规律等。
Haustorium ( pl . haustoria ) a specialized outgrowth of many parasitic fungi and certain parasitic plants such as dodder ( cuscuta ) and broomrape ( orobanche ) , that penetrates into and withdraws food material from the cells of the host plant 吸器：是某些寄生真菌和某些寄生植物如菟丝子（菟丝子属）和肉苁蓉（列当属）所长出的特化结构，它可以刺入寄主植物体内并从寄主细胞中吸取营养物质。
Due to ignoring quarantine test on alfalfa seed that is introduced to other place and extensive alfalfa field management , the damage of dodder became more and more serious , the spreading area became more and more wide , the damage on grassland production became more and more serious 近年来由于对引种苜蓿种子的检疫检验重视不够，以及苜蓿地田间管理粗放等原因，菟丝子的传播范围越来越广，对草业生产造成的危害也日趋严重。
