该项目是湖南省植保所等单位完成的省科技攻关研究项目。豚草是一种外来恶性杂草,属检疫对象,不但危害农牧业,其花粉危害人体健康。该草于30年代传入我国,研究者采用天敌昆虫和病原微生物进 The project is Hunan Provincial Plant Protection Institute and other units completed by the provincial scientific and technological research projects. Ragweed is a kind of alien malignant weed which belongs to the quarantine object, not only endangering agriculture and animal husbandry, but also its pollen endanger human health. The grass was introduced to our country in the 1930s, researchers use natural enemies of insects and pathogenic microorganisms into