Preliminary Study on Control Effects of Five Herbicides on Invasive Species of Xanthium sibiricum in Ningxia
This study aims to screen one or two kinds of herbicides which are suitable for the control of X.sibiricum in Ningxia region.The plant control effects and fresh weight control effects of 5 herbicides,including 2 methyl 4 chlorodimethylamine salt,fluroxypyr,saflufenacil·glyphosate,nitrosulone,topramezone on X.sibiricum,were determined by field experiments.After 21 days,the results of plant control effects showed that among the five herbicides,2 methyl 4 chlorodimethylamine salt 60％ AS with 750 mL/hm2,fluroxypyr 200 g/L EC with 900 mUhm2,and saflufenacil glyphosate 40％ OD with 1500 mL/hm2 presented excellent plant control effect,and the control effects were 96.62％ ,98.31％ ,and 100％ ,respectively;the results of fresh weight control effects showed that fluroxypyr 200 g/L EC with 900 mUhm2 and saflufenacil·glyphosate 40％ OD with 1500 mUhm2 had remarkable control effects,which were 93.94％ and 100％ ,respectively.Based on the results of control effects,as well as the different crops,the biocidal herbicide saflufenacil·glyphosate can be selected for the control of X.sibiricum in wasteland,forest land,ditches,etc.In the control of X.sibiricum in gramineous crop fields such as wheat and corn,fluroxypyr herbicides were the first choice.
Xanthium spinosuminvasive speciesNingxiaherbicidecontrol effectfield trialplant control effectfresh weight control effect
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