一种进境抗药性杂草——东方大蒜芥(Sisymbrium orientale L.)

An Invasive Herbicide-Resistant Weed-Sisymbrium orientale L.

东方大蒜芥(Sisymbrium orientale L.)是十字花科大蒜芥属杂草,与作物争夺资源,影响作物产量,其植株影响作物收割,种子可影响小麦的等级评定;对磺酰脲、咪唑酮和三唑吡啶类除草剂具有抗药性,且具有交叉抗性,大大增加了防治成本。2019年至今,我国多次在进境粮谷中检出该种杂草种子,表明东方大蒜芥可随粮谷贸易长距离传播。应加强粮谷的过筛及筛下物的挑拣,提升检疫鉴定能力,增加相关进口粮谷加工企业周边的环境监测和后续监管工作。

Sisymbrium orientale L.,belongs to Sisymbrium in Bricaceae,competes with crops for resources,and affects crop yield.Its plant also affects the harvest of crops,and its seed affects the grade estimation of wheat.It is resistant to sulfonylurea,imidazolone and triazopyridine herbicides,and has cross-resistance,which greatly increases the control cost.Since 2019,the seed of S.orientale were often detected in imported grains.It indicated that S.orientale could spread long distances with grains trade.It is necessary to strengthen the selection of grain screening,improve the quarantine identification capacity,and increase the environmental monitoring and follow-up supervision.