The brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), has been causing massive damage to various fruit and vegetable crops after its arrival in the USA, and more recently in Europe. To provide an alternative control measure to pesticides, the native egg parasitoid Anastatus bifasciatus (Geoffroy) (Hymenoptera: Eupelmidae) was considered as a candidate biological control agent for inundative releases in Europe. In the risk assessment study presented here, all nine heteropteran and 14 out of 19 tested lepidopteran non-target species produced viable A. bifasciatus offspring. The proportion of A. bifasciatus females producing offspring did not differ between non-target and target for 19 out of the 28 non-target species. Larger host eggs corresponded to increased female-biased sex ratio of the offspring as well as an increase in size, particularly for females, with hind tibia lengths varying from 645.5 ± 46 to 1084 ± 28.5 μm. Larger females were also found to have higher offspring production and increased life expectancy. The results of this study confirmed the polyphagous nature of A. bifasciatus and suggest that a number of non-target species, including Lepidoptera of conservation interest, may be attacked in the field. Thus, non-target effects cannot entirely be ruled out, but more information is needed from semi-field and field studies to fully assess potential environmental risks due to inundative releases of this native parasitoid.

中文翻译：

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在欧洲使用卵寄生蜂Anastatus bifasciatus对抗入侵的褐纹臭蝽：可以排除非目标效应吗？

棕色有纹蝽，Halyomorpha halys (Stål)（半翅目：蝽科），在抵达美国后对各种水果和蔬菜作物造成巨大损害，最近又登陆欧洲。为了提供农药的替代控制措施，本地卵寄生蜂Anastatus bifasciatus (Geoffroy)（膜翅目：Eupelmidae）被认为是欧洲洪水释放的候选生物控制剂。在此介绍的风险评估研究中，所有 9 种异翅目昆虫和 19 种测试的鳞翅目非目标物种中的 14 种都产生了可存活的A. bifasciatus后代。在 28 个非目标物种中，有 19 个物种的A. bifasciatus雌性产生后代的比例在非目标物种和目标物种之间没有差异。较大的宿主卵对应于后代雌性性别比例的增加以及体型的增加，特别是雌性，后胫骨长度从 645.5 ± 46 到 1084 ± 28.5 μm 不等。体型较大的雌性也被发现具有更高的后代产量和更长的预期寿命。这项研究的结果证实了A. bifasciatus的多食性，并表明许多非目标物种，包括具有保护意义的鳞翅目，可能会在野外受到攻击。因此，不能完全排除非目标效应，但需要从半现场和现场研究中获得更多信息，以充分评估由于这种本地寄生蜂的大量释放而造成的潜在环境风险。