昆虫病毒制剂奥绿一号乳油对秋甘蓝田主要害虫及天敌群落的影响
2016-10-20缪新伟王万群
缪新伟 王万群


摘要 研究了昆虫病毒制剂奥绿一号乳油对秋甘蓝田害虫和天敌群落的影响。结果表明:奥绿一号乳油可有效抑制秋甘蓝主要优势害虫斜纹夜蛾的优势度,对甘蓝田害虫和天敌群落的丰富度有一定影响,但可显著提高群落的均匀度,有助于加强天敌对害虫的自然控制作用。因此,使用奥绿一号符合害虫生态控制的要求。
关键词 昆虫病毒制剂奥绿一号;甘蓝田害虫;天敌群落;影响
中图分类号 S436.35 文献标识码 A 文章编号 1007-5739(2016)06-0127-02
Effects of Insect Virus Insecticide Aolu No.1 Treatment on Major Insect Pest and Natural Enemy Communities in Autumn Cabbage Fields
MIAO Xin-wei WANG Wan-qun
(Plant Protection and Quarantine Station of Chuzhou City in Anhui Province,Chuzhou Anhui 239000)
Abstract The effects of insect virus insecticide Aolu No.1 treatment on insect pest and natural enemy communities in autumn cabbage fields were studied in this paper. The results showed that Aolu No.1 treatment reduced effectively the dominance of major insect pest Prodenia litura in autumn cabbage fields.Aolu No.1 treatment had some effects on species richness,but raised significantly the evenness,diversity and stability of arthropod communities in autumn cabbage fields.Therefore,Aolu No.1 treatment was beneficial to promote the natural control effects on natural enemies on insect pests and accorded with the demands of insect pest ecological control.
Key words insect virus insecticide Aolu No.1;insect pest in cabbage field;community of natural enemy;effect
随着社会经济的发展和人们生活水平的提高,人们的饮食结构将实现由温饱型向营养型再向保健型的转变。我国是蔬菜生产大国,蔬菜产业在我国的经济发展中占有重要地位。由于蔬菜农药残留的危害性远高于其他农产品,國内外对蔬菜害虫生态控制基础理论和应用研究十分重视[1]。在蔬菜病虫害的防治过程中,往往喷施大量化学农药,致使菜叶上农药残留严重。我国学者已经十分重视使用生物农药和植物性杀虫剂来防治十字花科蔬菜上的重要害虫。
十字花科植物中含有芥子油苷等次生化合物[2],其对大多数害虫具有忌避作用。由于人们主要依靠大量使用化学农药防治害虫,导致蔬菜生产中“3R”(害虫产生抗药性、害虫再猖獗、农药残留)严重[3],迫切需要转向以生态控制为主要内容的综合治理[4]。生物农药指“可用来防治病、虫、草等有害生物的生物体本身及源于生物,并可作为农药的各种生理活性物质”。……
