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

Effects of Insect Virus Insecticide Aolu No.1 Treatment on Major Insect Pest and Natural Enemy Communities in Autumn Cabbage Fields

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。

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 Proden/a litura in autumn cabbage ficlds.Aolu No.1 treatment had some effects on species rlchness,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.