【摘要】 对危害磴口县农田防护林栽植的杨树害虫种类及危害程度进行了调查。结果表明,磴口县杨树主要虫害共有45种,其中鳞翅目占总种类数的42.2%;鞘翅目占磴口县杨树害虫种类的33.3%,这两类害虫是磴口县杨树害虫的主要种类;杨树天牛危害最为严重。更多还原

【Abstract】 The study about pest species in farmland shelter belt in Dengkou County was conducted.The result showed that there are 45 species of pest insects infecting poplar in Dengkou County.Lepidoptera takes up for 42.2%,and Coleoptera 33.3%.The two categories of pests are major species,with most serious harm coming from long-horned beetles更多还原