【摘要】 红蜡蚧(CeroplastesrubensMaskell)是多种果树、园林植物的重要害虫。该虫在昆明地区1年发生1代,5月上中旬为1龄若虫高峰,8月底进入成虫期,以受精雌成虫越冬。红蜡蚧的捕食性天敌昆虫有4种,隶属于鞘翅目的瓢虫科和脉翅目的草蛉科。寄生性天敌昆虫有17种,隶属于膜翅目小蜂总科的姬小蜂科、跳小蜂科、金小蜂科、蚜小蜂科和旋小蜂科,其中蜡蚧啮小蜂(Te trastichusceroplasteaeGirault)为红蜡蚧的主要寄生蜂,其数量占寄生蜂总数的42 55%,其次为黑灰蚧长盾金小蜂[Anysissaisseti ae(Ashmead)]和花角跳小蜂(Blastothrixsp.),分别占寄生蜂总数的20 33%和14 63%。以上3种寄生蜂的数量变化将影响寄主的整体消长变化。更多还原

【Abstract】 Ceroplastes rubens Maskell is the important insect pest of some ornamental plants and fruit trees.It had one generation a year in Kunming.The most abundant population density of its firstinstar nymph appeared from early to midMay,adulthood period occurred in the end of August,and the impregnate female adults overwinterd.It was found that there were 4 species of its predatory natural enemies belonging to Coccinellidae and Chrysopidae,and 17 species of its parasitic natural enemies belonging to Eulophidae,Encyrtidae,Pteromalidae,Aphelinidae and Eupelmidae,respectively.Tetrastichus ceroplasteae Girault was the most important parasitoid of the pest,which accounted for 4255?% of all parasitoids.The next two were Anysis saissetiae Ashmead and Blastothrix sp.,accounting for 2033?% and 1463?%,respectively.The change of population density of the three parasitoids above would affect the fluctuation of whole parasitoid community.更多还原