Abstract The invasive brown marmorated stink bug, Halyomorpha halys, is present in the Piedmont and expanding into the Coastal Plains Regions of the southeastern US. Consequently, this study was conducted to evaluate parasitism and predation of H. halys sentinel egg masses by native parasitoids and predators in woodland habitats and orchard, vineyard, row, and vegetable crops alongside these habitats in Alabama and Georgia in 2017 and 2018. Ten primary parasitoid species, including two new records, and one hyperparasitoid emerged from eggs. Trissolcus japonicus was not detected. Ooencyrtus sp. was the prevalent parasitoid species in vegetables while Telenomus podisi was the predominant species in row crops. Anastatus reduvii, An. mirabilis, Tr. brochymenae, and Tr. euschisti were the prevalent species in woodland and orchard habitats. Trissolcus edessae Fouts occurred primarily in orchards. Trissolcus basalis and Gyron obesum were observed in vegetable habitats. Percentage successful development to adults, sex ratio, and percentage of parasitism per egg mass was highest for Tr. edessae. Predation damage included complete and incomplete chewing, stylet sucking, puncture sucking, and removal of whole eggs from egg masses. Hole and non-stylet sucking damage were discovered. Chewing and piercing-sucking predation constituted the majority of predation in woodlands, plum, blueberry, tomato, pecan, peach, and okra. Mainly chewing predation and egg removal occurred in soybean, cotton, and strawberry. Piercing-sucking predation was common in wine grape and apple. There was no difference between fresh and frozen eggs in the proportion of parasitism and predation both years. In 2017, overall percent parasitism was higher for blueberry compared to other crops except peach and apple. No differences were detected in 2018. Peak parasitism (72.3%) in apple at a site in 2017 represented the highest parasitism rate. Predation was highest in soybean and cotton. Indeed, predation in soybean reached very high levels in 2017 (96.3%) and 2018 (90.3%). In conclusion, native natural enemies parasitize and prey on H. halys egg masses in the southeastern US.

中文翻译：

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寄生和捕食美国东南部侵入性棕色獾臭虫 Halyomorpha halys (Stål)（半翅目：Pentatomidae）的哨兵卵

摘要 入侵的棕色獾臭虫 Halyomorpha halys 存在于山麓并扩展到美国东南部的沿海平原地区。因此，本研究旨在评估 2017 年和 2018 年在阿拉巴马州和乔治亚州的林地栖息地和果园、葡萄园、行和蔬菜作物中本地寄生蜂和捕食者对 H. halys 哨兵卵群的寄生和捕食。 10 个主要寄生蜂种类，包括两项新记录，以及一种从卵中出现的超寄生蜂。未检测到日本三足草。Ooenchrtus sp. 是蔬菜中普遍存在的寄生性物种，而 Telenomus podisi 是中耕作物中的主要物种。Anastatus reduvii, An. 奇异果，Tr。brochymenae 和 Tr。euschisti 是林地和果园栖息地的流行物种。Trissolcus edessae Fouts 主要发生在果园中。在植物栖息地观察到Trissolcus basalis和Gyron obesum。Tr 的成虫成功发育百分比、性别比和每个卵质量的寄生百分比最高。埃德萨。捕食性损害包括完全和不完全咀嚼、口针吸吮、穿刺吸吮和从卵块中取出全卵。发现孔洞和非管心针吸吮损坏。咀嚼和刺吸式捕食构成了林地、李子、蓝莓、番茄、山核桃、桃子和秋葵的大部分捕食。主要发生在大豆、棉花和草莓中的咀嚼捕食和卵去除。刺吸式捕食在酿酒葡萄和苹果中很常见。两年间，鲜卵和冷冻卵的寄生和捕食比例没有差异。2017 年，与除桃子和苹果以外的其他作物相比，蓝莓的总体寄生百分比更高。2018 年未检测到差异。 2017 年苹果某个地点的最高寄生率（72.3%）代表最高的寄生率。大豆和棉花的捕食率最高。事实上，大豆的捕食量在 2017 年（96.3%）和 2018 年（90.3%）达到了非常高的水平。总之，本地天敌寄生并捕食美国东南部的 H. halys 卵群。