论文部分内容阅读
近 4年来的研究 ,记载了为害沂蒙山区杞柳的害虫 (害螨 ) ,共计 115种 ,分属于昆虫纲和蛛形纲 ,6目 ,31科。
In the past 4 years, there were 115 pests (pest mites) harbored to the willow trees in the Yimeng Mountains, a total of 115 species belonging to the order Insecta and Arachnida, 6 orders and 31 families.