甜菜筒喙象Lixus subtilis Boheman在藜麦上大暴发

Outbreak of Lixus subtilis Boheman on quinoa

甜菜筒喙象是世界潜在入侵象虫网收录的一种重要象甲科昆虫,主要为害甜菜,以及藜科、苋科和蓼科的一些杂草,国内外未曾见有为害藜麦的报道,2016年7月下旬我们发现该种象虫在北京严重为害藜麦。本文首次报道甜菜筒喙象在藜麦上的发生为害情况,同时介绍了其形态识别特征、生物学特性,给出了防治建议,并提出下一步研究重点,为有效防范甜菜筒喙象的进一步扩散为害,保障我国藜麦产业的健康发展提供科学支撑。

Lixus subtilis Boheman,a weevil species recorded in the network of Potential Invasive Weevils of the World,is one of the most serious pests infesting sugar beet.Besides,this weevil species can feed on weeds belonging to families Chenopodiaceae,Amarantaceae and Polygonaceae.No harm has been reported on quinoa worldwide before.However,a serious damage to quinoa was firstly documented in Beijing,China in the end of July2016.This paper is the first report to provide information about the damage of L.subtilis to quinoa.Moreover,morphological identification and biological characteristics of this weevil species were described,and the control measures were suggested.Furthermore,focuses of future research were proposed.The work should be benefit in preventing the further spreading and damaging of this weevil species and in healthy development of the quinoa industry.