昆明地区白蜡虫天敌寄生蜂种群结构与动态研究

Studies on the Population Structure and Dynamic of Parasite Wasps on Ericerus pela in Kunming Area

采用定点诱集方法研究了昆明地区白蜡虫天敌寄生蜂的种群结构与优势种群的动态变化规律。结果表明,昆明地区白蜡虫天敌寄生蜂达11种,均属小蜂总科;以白蜡虫花翅跳小蜂、白蜡虫阔柄跳小蜂和中华花翅跳小蜂为优势种群,分别占整个种群数量的45 9%、37 3%和11 4%。优势种群数量变动是影响混合种群产生波动的主要因素。建议抓住优势种群发生高峰期,制定白蜡虫天敌寄生蜂的有效控制措施。

Population dynamics and population structure of parasite wasps on white wax insect were studied by the fixture trapping from 1999 to 2000.Results showed that in Kunming area there were 11 species,and all the species belong to chalcid parasited on Ericerus pela.According to the classification standard,Microterys ericeri,Metaphycus ericeri and Microterys sinicus were defined as the dominant parasite wasps of the white wax insect,occupying 45.9%,37.3%and 11.4% of total species population density respectively.The fluctuation of dominant population was a key factor influencing the complex population fluctuation.A suggestion was given to designate the control strategy about the parasite wasps on the white wax insect.