论文部分内容阅读
金龟子类幼虫是一类重要的地下害虫,可危害农、林、果、菜、草等多种植物。由于这类害虫危害植物地下部分或地面附近根茎部分,具有一定的隐蔽性,而且分布广,也是难以防治的世界性害虫。随着人们对苏云金杆菌(Bacillus thuringiensis,以下简称Bt)资源调查与研究的深入,新的具有特异杀虫谱的Bt菌株陆续被发现。1992年,Ohba等在世界上首次从土壤中分离筛选出对金龟子幼虫具有特异杀虫活性的Bt新菌株BuiBui。笔者于
Scarab larvae are an important group of underground pests that can endanger many kinds of plants such as agriculture, forestry, fruit, vegetables and grass. Because these pests endanger the underground parts of plants or near the ground rhizome, has a certain degree of concealment, but also widely distributed, but also difficult to control the world pests. With the further exploration and research on the resources of Bacillus thuringiensis (hereinafter referred to as Bt), new strains of Bt with specific insecticidal spectrum were discovered one after another. In 1992, Ohba, etc. in the world for the first time from the soil were isolated and screened for beetle larvae with specific insecticidal activity of new strains of BuiBui. The author at