作　　者： ; ; ; ;

机构地区： 安徽农业大学植物保护学院

出　　处： 《华南农业大学学报》 2013年第3期352-355,共4页

摘　　要： 采用田间试验和系统调查方法,研究了甘蓝与大蒜不同比例间作对春甘蓝田主要害虫及节肢动物群落的影响.结果表明,甘蓝与大蒜间作可以降低春甘蓝主要害虫菜青虫和菜蚜的发生程度,提高节肢动物群落的多样性和益害比,有助于提高群落的稳定性和天敌的自然控制作用.与甘蓝单作相比,1行甘蓝+1行大蒜间作,春甘蓝主要害虫菜青虫和菜蚜的种群数量分别下降了48.9%和35.6%,节肢动物群落的多样性和益害比分别上升了17.9%和61.8%,减轻了采用其他措施包括药剂防治甘蓝害虫的压力,提高了防治效果和综合效益. The field experiments and systematic investigation were made to study the effects of intercropping of cabbage and garlic on major pests and arthropod community in spring cabbage fields.The results showed that the intercropping of cabbage and garlic was able to reduce the degree of occurrence of major pests,Pieris rapae and Lipaphis erqsimi,raise the diversity and the ratio of natural enemies to pests of arthropod community,and was helpful to improve the community stability and reinforce the control of natural enemies on pests in spring cabbage fields.The average population density of major pests,Pieris rapae and Lipaphis erqsimi was reduced by 48.9% and 35.6% respectively,and the average diversity index and the ratio of natural enemies to pests of arthropod community rised by 17.9% and 61.8% respectively in intercropping field of 1 line cabbage and 1 line garlic as compared with those in cabbage monoculture field.Therefore,the intercropping of cabbage and garlic was helpful to reduce the pressure of cabbage pests caused by other control methods,including using insecticides,and improve the effects of provention and treatment and comprehensive benefit.

关 键 词： 春甘蓝 大蒜 间作 害虫 节肢动物群落

领　　域： [农业科学] [农业科学]