【摘要】 对贵阳地区的烟仓害虫天敌种类进行了调查。结果表明,其天敌共有11种,隶属3纲、7目、10科;优势种天敌为麦蛾柔茧蜂、米象金小蜂。麦蛾柔茧蜂完成一代夏季为9~13d,秋季为13~18d,一年发生世代数可达10代以上;成虫寿命12~17d。将采集的烟草粉斑螟幼虫于室内饲养,麦蛾柔茧蜂的出蜂率为46.0%;在烟仓的墙壁、过道和烟包表层,麦蛾柔茧蜂对烟草粉斑螟的平均寄生率达61.0%。米象金小蜂完成一代需30~33d,发生世代数3代;成虫寿命为10~15d。在烟仓,该蜂对烟草甲幼虫和蛹的寄生率分别为24.53%~33.70%、42.59%~61.64%。米象金小蜂对寄主烟草甲的跟随现象明显。更多还原

【Abstract】 Investigation of natural enemies in tobacco storage showed that there are 11 species in 3 class,7 order,10 family.The predominant species are Habrobracon hebetor and Lariophagus distinguendes.H.hebetor completes a generation within 9-13 days in the summer and 13-18 days in the autumn,and occurs more than 10 generations in a year.Adult longevity of H.hebetor is 12-17 days.Parasitism rate of Ephestia elutella larvae collected on the wall,corridor and package surface in tobacco storage reached 61%.L.distinguendus completes a generation within 30-33 days and occurs 3 generations in a year,with adult longevity of 10-15 days.Parasitism rates of larvae and pupae of Lasioderma serricorne by L.distinguendus in tobacco storage were 24.5%-33.7% and 42.6%-61.6%.Therefore,the protection and utilize of natural enemies are very important during tobacco storage.更多还原