Adult diet affects the life history and host-killing behavior of a host-feeding parasitoid
Adult diet affects the life history and host-killing behavior of a host-feeding parasitoid
复制标题
成虫饮食影响以寄主为食的寄生蜂的生活史和杀寄主行为
DOI：
10.1016/j.biocontrol.2014.11.002
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发表时间：
2015-02-01
影响因子：
4.2
通讯作者：
Wan, Fang-Hao
中科院分区：
文献类型：
--
作者：
Liu, Wan-Xue;Wang, Wen-Xia;Wan, Fang-Hao
Neochrysocharis formosa （Westwood）是一种以寄主为食的异生寄生蜂，是一种重要的防治农螨病的生物制剂。雌性黄蜂有三种杀宿主行为：生殖（寄生）、非生殖寄主摄食（寄主摄食）和不产卵不摄食（寄主蜇伤）的寄主蜇伤。本研究比较了雌性寄生蜂在饥饿、纯寄主、寄主加蜂蜜（10% w/v蜂蜜溶液）和纯蜂蜜四种成虫摄食条件下的生活史和杀虫行为。此外，我们还分析了单独寄主和寄主加蜜处理下成年雌蜂的取食和产卵偏好。在饥饿处理下，雌性寄生蜂以寄主为食，显著延长寄主寿命，提高寄主繁殖力，增加寄主蜇伤事件，导致寄主总死亡率高于寄生蜂。补充蜂蜜显著增加了蜜蜂的寿命、繁殖力、宿主蜇伤事件和总宿主死亡率，以及平均每日繁殖力，但没有改变宿主取食事件、宿主蜇伤事件或每日总宿主死亡率。然而，蜂蜜补充剂确实减少了每日宿主摄食事件的数量，并诱导了产卵的转变。结果表明，寄主取食和寄主蜇伤对非繁殖性寄主的杀伤作用增强了福尔莫沙的防治潜力。这些结果将有助于更好地了解破坏性寄主食用菌的生物防治效果。(C) 2014爱思唯尔公司版权所有。
Neochrysocharis formosa (Westwood), an important biocontrol agent of agromyzid leafminers worldwide, is a host-feeding, idiobiont parasitoid. Female wasps have three types of host-killing behaviors: reproductive (parasitism), non-reproductive host feeding (host feeding), and host stinging without oviposition or feeding (host stinging). In this study, we compared the life history and host-killing behaviors of female parasitoids under four adult diets: starvation, hosts only, hosts plus honey (10% w/v honey solution), and honey only. Furthermore, we analyzed the host-feeding and oviposition preferences of adult females in the hosts-only and hosts-plus-honey treatments. Female parasitoids feeding on hosts had significantly increased longevity, higher fecundity, more host-stinging events, and caused a higher total host mortality than parasitoids in the starvation treatment. The honey supplement significantly increased longevity, fecundity, host-stinging events, and total host mortality, as well as average daily fecundity, but did not alter host-feeding events, host-stinging events, or daily total host mortality. However, the honey supplement did reduce the number of daily host-feeding events and induced a shift toward oviposition. Finally, we found that the non-reproductive host killing caused by host feeding and host stinging enhanced the control potential of N. formosa. These results should contribute to a better understanding of the biocontrol efficiency of destructive host feeders. (C) 2014 Elsevier Inc. All rights reserved.