补充外源营养对豌豆潜蝇姬小蜂寿命的影响

采用单管饲养法,研究了外源营养对豌豆潜蝇姬小蜂寿命的影响。结果表明:外源营养对不同性别豌豆潜蝇姬小蜂寿命的影响差异不显著。补充蜂蜜、葡萄糖、蔗糖、果糖等糖类营养均能显著延长姬小蜂的寿命,与补充牛血清白蛋白、清水以及无饲喂处理相比,平均寿命延长了5～9倍。15%葡萄糖水、15%蜂蜜水和15%蔗糖水的饲喂效果显著好于其他浓度,雌蜂平均寿命分别达(47.0±3.5)d、(45.7±2.9)d和(44.5±3.5)d,较无饲喂处理寿命延长15倍以上。该测定结果可以为豌豆潜蝇姬小蜂的大量繁殖提供一定参考。

Effects of different supplementary foods on longevity of Diglyphus isaea

The effects of different supplementary foods on the longevity of Diglyphus isaea (Walker) raised in single tubes were studied. The results showed that the difference between the longevity of male and female D. isaea was not significant. The longevity of wasps fed with sugars was 5 9 fold longer than those fed with bovine serum albumin, water or no foods. Moreover, the longevity of the wasps fed with 15% glucose, 15% honey or 15% sucrose could reach (47.0±3.5)d, (45.7±2.9)d and (44.5±3.5)d, respectively, 15 fold longer than those without foods. The results provide useful information for mass rearing of D. isaea.