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为了研究营养状态对卵育型寄生蜂潜蝇姬小蜂Diglyphus isaea(Walker)雌蜂的寄主取食行为和产卵寄生行为及其二者行为权衡的影响,在培养皿条件下,比较了饥饿、加蜂蜜水和不加蜂蜜水3种营养状态的潜蝇姬小蜂雌蜂对美洲斑潜蝇Liriomyza sativae Blanchard各龄幼虫(低、中、高)的寄生、取食及致死能力。结果表明:非选择条件下,3种营养状态寄生蜂对高龄幼虫均具有较高的寄生率,对中龄幼虫具有较高的取食率,致死率和致死量之间存在显著性差异。3种状态的寄生蜂对低龄幼虫均没有表现出致死能力。有选择条件下,饥饿状态的寄生蜂对寄主的寄生率最低(5.0%±1.6%),取食率最高(16.0%±2.9%),特别是对高龄幼虫的取食率占到了整个寄主食物取食率的91.9%;加蜂蜜水状态下,寄生蜂对寄主有最低的取食率(8.3%±0.9%)和致死率(17.7%±1.1%);不加蜂蜜水状态下,寄生蜂对寄主有最高的寄生率(13.3%±1.1%)和致死率(28.4%±1.8%)。综合分析发现,取食寄主的雌蜂比取食蜂蜜水的雌蜂具有更强的致死能力和活动能力。
In order to study the effect of nutritional status on host feeding behavior and parasitoids parasitism and the balance between behavioral balance of female and female in the egg-feeding parasitoid, Diglyphus isaea (Walker), the effects of starvation , Plus honey water and no water of honey three kinds of nutritional status of latent female Ji bee Ji Li Li Liomyza sativae Blanchard larvae (low, medium and high) parasitism, feeding and lethal ability. The results showed that under the non-selective conditions, parasitoids of the three nutritional status had higher parasitism rates on the older larvae, higher feeding rates on the middle-aged larvae, and significant differences between lethality and lethal dose. Parasitic bees in three states did not show lethality to young larvae. Under the selected conditions, parasitic wasps in the starvation state had the lowest parasitism (5.0% ± 1.6%) and highest feeding rate (16.0% ± 2.9%), especially for the older larvae, which accounted for the entire host food The feeding rate was 91.9%. The parasitoid had the lowest feeding rate (8.3% ± 0.9%) and the lethal rate (17.7% ± 1.1%) to the host with honey water; The hosts had the highest parasitism (13.3% ± 1.1%) and lethality (28.4% ± 1.8%). The results showed that the females fed on the host had more lethal ability and activity than the females fed on the honey water.