桔全爪螨自然种群生命表及其分析的改进  

IMPROVEMENT ON THE LIFE TABLE OF NATURALPOPULATION OF CITRUS RED MITE AND ITS ANALYSIS

作　　者：田明义[1] 梁广文[1] 庞雄飞[1] 

机构地区：[1]广州华南农业大学昆虫生态研究室

出　　处：《华南农业大学学报》1994年第3期39-44,共6页Journal of South China Agricultural University

摘　　要：通过系统调查和室内观察，采用平均历期法，组建以作用因子组配的桔全爪螨自然种群生命表。组配自然种群生殖力表，以内禀增长率（ｒｍ）等作为判断桔全爪螨种群数量发展趋势的指标。分析结果表明，在春季天敌对桔全爪螨种群数量的控制作用是明显的，但天敌作用不足以控制桔全爪螨种群数量的增长，需辅以其他措施进行控制。Based on the characteristic of the serious overlapping generations of the citrus redmite, Panonychus citri McGregor, the life tables of natural population wereconstructed in spring season in citrus orchard in 1991～1992 in Qingzhen,Guizhouprovince.Combined with the fecundity of the mite observed in Laboratory,the in-trinsic capacity of increase rate (rm) was used as parameter to indicate the trends ofthe population dynamics of the mite.The resuit showed that the population densi-ties of the mite increased in spring because of lower density of the natural enemies.It was suggested that several active measures could be used to control the pest.

关 键 词：生命表 桔全爪螨 自然种群 柑桔 

分 类 号：S436.661.2[农业科学—农业昆虫与害虫防治]