研究了饲喂替代饲料后改喂自然猎物烟粉虱 Bemisia tabaci（Gennadius）对小黑瓢虫 Delphastus catalinae（Horn）产卵的影响。结果表明，小黑瓢虫成虫分别用不同替代饲料饲喂15、25、35 d后改喂烟粉虱，都能在1～4d内恢复产卵。但小黑瓢虫成虫随着替代饲料饲喂天数的增加，产卵期缩短，产卵量降低。不同替代饲料分别饲喂小黑瓢虫成虫35 d后改喂烟粉虱，以饲喂米蛾Corcyra cephalonica （Stainton）卵的小黑瓢虫产卵量最大（246.00粒）、产卵期最长（68.33 d），其次为饲喂黄粉虫Tenebrio molitor（Linnaeus）蛹脱脂粉（203.33粒，61.00 d）和橘小实蝇 Bactrocera dorsalis（Hendel）老熟幼虫脱脂粉（128.33粒，57.00 d）。%Effect of alternative feeding with artificial diets and whitefly Bemisia tabaci (Gennadius) on oviposition of Delphastus catalinae (Horn) were investigated. The results show that adult D. catalinae could all resume to lay eggs within 1-4 days when they were fed with whiteflies after being fed with artificial diet for 15, 25, and 35 days, but oviposition duration and fecundity decreased with increasing of feeding days on artificial diets. Fed with different artificial diets for 35 days and then with whiteflies, D. catalinae showed different fecundity and oviposition duration, 246.0 eggs and 68.33 d on eggs of Corcyra cephalonica (Stainton), 203.33 eggs and 61.00 d on defatted powder of pupae of Tenebrio molitor (Linn.), and 128.33 eggs and 57.00 d on defatted powder of mature larvae of Bactrocera dorsalis Hendel.
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