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向日葵列当对向日葵的生长及种子发育具有很大的危害作用,可使植株矮小、瘦弱,花盘直径小、瘪粒多、产量低及含油量下降,严重时甚至不能形成花盘,最后全株枯死。基于此,介绍向日葵列当的发生规律,分析向日葵列当的发生原因,在此基础上提出向日葵列当的综合防治措施。向日葵列当又称毒根草、兔子拐棍,是一年生草本植物,属双子叶植物,列当科。向日葵列当是对向日葵危害严重的寄生性杂草,受害重的地块,株寄生率达72.0%~91.0%。向日葵列当寄生在向日葵根部,可使植株矮小、瘦弱,花盘直径小,瘪粒多,
Sunflower column when the sunflower growth and seed development has a great harm, can make plants dwarfed, thin, disc diameter small, shrunken tablets and more, low yield and oil content decline, even in severe cases can not form a disk, and finally the whole plant died . Based on this, we introduce the law of occurrence of sunflowers, analyze the causes of sunflowers, and put forward the comprehensive prevention and control measures of sunflowers. Sunflower column, also known as poison grass, rabbit walking stick, is an annual herb, is a dicotyledon, Dandong Ke. Sunflower column is a serious damage to the sunflower parasitic weeds, victims of heavy land, the parasitic strains of 72.0% ~ 91.0%. Sunflower column when parasitic on the roots of sunflowers, plants can make small, thin, small disk diameter, shrunken tablets and more,