今年,北京延庆区、房山区、门头沟区、怀柔区四个区藜麦生产遭受严重虫害,产量减少50%以上。后经植保专家初步调查发现,甜菜筒喙象虫害大暴发是主要原因,在延庆区和门头沟区藜麦种植区域该虫为害率达到30%~80%,严重地块为害率达到100%。在延庆区永宁镇藜麦示范地,延庆区农业技术推广站技术员郭自军在干枯的藜麦植株里发现存活的虫卵、幼虫及成虫,在藜麦示范地块周边杂草生长的土壤里发现越冬的成虫,证明甜菜筒 This year, the production of quinoa in Yanqing District, Fangshan District, Mentougou District and Huairou District of Beijing suffered severe pests and the output was reduced by more than 50%. After a preliminary investigation by plant protection experts found that beetle beetle like pest outbreak is the main reason, in Yanqing District and Mentougou quinoa planting area of ​​the pest rate of 30% to 80%, severe block damage rate of 100%. In the quinoa region of Yongning Town in Yanqing District, Guo Zijun, a technician in Yanqing District Agricultural Technology Extension Station, found the surviving eggs, larvae and adults in dry quinoa plants and found overwintering in the weeds growing around the quinoa demonstration plots Adults, prove the beetles