Discovery of an Exotic Egg Parasitoid of the Brown Marmorated Stink Bug, Halyomorpha halys (Stål) in the Pacific Northwest

Milnes, Joshua M.; Wiman, Nik G.; Talamas, Elijah J.; Brunner, Jay F.; Hoelmer, Kim A.; Buffington, Matthew L.; Beers, E. H.

doi:10.4289/0013-8797.118.3.466

Cited by 82 publications

(60 citation statements)

References 9 publications

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“…Egg parasitoids of H. halys have followed this species in its spread to new areas, likely transported as they develop in eggs laid on plants or other materials. Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae), commonly known as the samurai wasp, was first detected in 2014 in the eastern USA, followed by a second discovery in the northwestern USA in 2016 (Talamas et al 2015;Milnes et al 2016). It has since spread north to Canada, where it has been present since at least 2017 (Abram et al 2019;Gariepy and Talamas 2019).…”

Section: Introductionmentioning

confidence: 99%

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang & Liao) (Hymenoptera, Pteromalidae)

Peverieri¹,

Mitroiu²,

Bon³

et al. 2019

JHR

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Halyomorpha halys is an invasive, widespread stink bug for which only short-term solutions are currently available for pest control worldwide. The need for long-term management solutions for H. halys has driven studies on augmentative and classical biological control of this species, especially by its egg parasitoids. Numerous investigations in Asia, USA, and Europe on native and exotic egg parasitoids of H. halys, and the effects on non-target pentatomids, have improved the global knowledge of parasitoid-host relationships, uncovered new associations, and led to the discovery of new species. This trend continues with Acroclisoides sinicus, a pteromalid that was described in the 1980's from Asia. In this work we report recent findings of this species in North America and Europe. Moreover, we propose that Acroclisoides solus syn. nov., a species described originally from the USA, is conspecific with A. sinicus based on morphological and molecular analysis.

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Section: Introductionmentioning

confidence: 99%

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang & Liao) (Hymenoptera, Pteromalidae)

Peverieri¹,

Mitroiu²,

Bon³

et al. 2019

JHR

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“…The emergence of Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) as a serious invasive alien pest outside of its native Asian range (Abram, Hueppelsheuser et al., ; Gapon, ; Gariepy, Fraser, & Scott‐Dupree, ; Haye & Weber, ; Haye, Gariepy et al., ; Hoebeke & Carter, ; Leskey et al., ; Rice et al., ), and the more recent adventive establishment of its Asian parasitoid, Trissolcus japonicus Ashmead (Hymenoptera: Scelionidae), in the USA (Hedstrom, Lowenstein, Andrews, Bai, & Wiman, ; Milnes et al., ; Talamas, Herlihy et al., ) provides a unique opportunity to investigate existing and novel trophic interactions in the pentatomid–scelionid community in regions where one or both of these exotic species have established or are likely to spread and establish.…”

Section: Introductionmentioning

confidence: 99%

A modified DNA barcode approach to define trophic interactions between native and exotic pentatomids and their parasitoids

et al. 2018

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The establishment of invasive Halyomorpha halys (Stål) outside of its native range may impact native species assemblages, including other pentatomids and their scelionid parasitoids. This has generated interest in defining species diversity and host-parasitoid associations in this system to better understand the impact of invasive alien species on trophic interactions in invaded regions. Information on scelionid-pentatomid associations in natural habitats is lacking, and species-level identification of these associations can be tenuous using rearing and dissection techniques. Naturally occurring pentatomid eggs were collected in areas where H. halys has established in Canada and were analysed using a modified DNA barcoding approach to define species-level trophic interactions. Identification was possible for >90% of egg masses. Eleven pentatomid and five scelionid species were identified, and trophic links were established. Approximately 70% of egg masses were parasitized; parasitism and parasitoid species composition were described for each species. Telenomus podisi Ashmead was the dominant parasitoid and was detected in all host species. Trissolcus euschisti Ashmead was detected in several host species, but was significantly more prevalent in Chinavia hilaris (Say) and Brochymena quadripustulata (Fabricius). Trissolcus brochymenae Ashmead and Tr. thyantae Ashmead were recorded sporadically. Parasitism of H. halys was 55%, and this species was significantly less likely to be parasitized than native pentatomids. The scelionid species composition of H. halys consisted of Te. podisi, Tr. euschisti and Tr. thyantae. Although these species cannot develop in fresh H. halys eggs, we demonstrate that parasitoids attempt to exploit this host under field conditions.

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“…Adventive populations of T. japonicus were recently found in the wild in North America (Milnes et al, 2016;Talamas et al, 2015), so there is a need to determine whether T. japonicus can survive cold winter temperatures. To assist in assessing the establishment potential of T. japonicus and T. cultratus in North America we measured supercooling points and lower lethal temperatures for unacclimated, geographically-distinct populations of these species (e.g.…”

Section: Introductionmentioning

confidence: 99%

Cold tolerance of Trissolcus japonicus and T. cultratus, potential biological control agents of Halyomorpha halys, the brown marmorated stink bug

et al. 2017

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Nystrom Santacruz et al.: Cold tolerance of T. japonicus and T. cultratus 1 Biological Control Cold tolerance of Trissolcus japonicus and T. cultratus, potential biological control agents of Halyomorpha halys, the brown marmorated stink bug Nystrom Santacruz et al.: Cold tolerance of T. japonicus and T. cultratus 2 ABSTRACT Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is native to Asia and has become a severe agricultural and nuisance pest in the U.S. Therefore, foreign exploration was conducted in Asia to identify potential classical biological control agents. Several Trissolcus spp. (Hymenoptera:Scelionidae) parasitize H. halys eggs in Asia and are being evaluated for potential release in the U.S. Since H. halys has invaded regions that experience sub-zero winter temperatures, cold tolerance is important for evaluation of Trissolcus spp. Our study compared the cold tolerance of populations of T. japonicus and T. cultratus, in order to assess relative suitability of the populations for release. We used thermocouple thermometry to determine the supercooling point and lower lethal temperature after brief exposure to cold temperature for each population. In addition, we subjected adult T. japonicus to a short photoperiod and low temperature regime, which increases cold tolerance in H. halys, to observe whether these conditions cause a change in cold tolerance in the parasitoid. We found that populations of both species froze and survived at colder temperatures than those reported for H. halys. In addition, there were no ecologically relevant differences in the temperature at which freezing or survival occurred among populations of either species, indicating that these populations are equally cold tolerant and suitable for introduction. Finally, T. japonicus does not acclimate by increasing cold tolerance in response to conditions that increase cold tolerance in H. halys, suggesting that the above-mentioned measures of cold tolerance are ecologically relevant.

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Discovery of an Exotic Egg Parasitoid of the Brown Marmorated Stink Bug, Halyomorpha halys (Stål) in the Pacific Northwest

Cited by 82 publications

References 9 publications

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang & Liao) (Hymenoptera, Pteromalidae)

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang & Liao) (Hymenoptera, Pteromalidae)

A modified DNA barcode approach to define trophic interactions between native and exotic pentatomids and their parasitoids

Cold tolerance of Trissolcus japonicus and T. cultratus, potential biological control agents of Halyomorpha halys, the brown marmorated stink bug

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Discovery of an Exotic Egg Parasitoid of the Brown Marmorated Stink Bug, Halyomorpha halys (Stål) in the Pacific Northwest

Cited by 82 publications

References 9 publications

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang &amp; Liao) (Hymenoptera, Pteromalidae)

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang &amp; Liao) (Hymenoptera, Pteromalidae)

A modified DNA barcode approach to define trophic interactions between native and exotic pentatomids and their parasitoids

Cold tolerance of Trissolcus japonicus and T. cultratus, potential biological control agents of Halyomorpha halys, the brown marmorated stink bug

Contact Info

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Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang & Liao) (Hymenoptera, Pteromalidae)

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang & Liao) (Hymenoptera, Pteromalidae)