Non-target attack of the native stink bug, Podisus maculiventris by Trissolcus japonicus, comes with fitness costs and trade-offs

Linder, Shelley; Jarrett, Benjamin J. M.; Szűcs, Marianna

doi:10.1016/j.biocontrol.2022.105107

Cited by 5 publications

(3 citation statements)

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“…We tested for nontarget effects on one of the most suitable native species, Podisus maculiventris , a beneficial predatory stink bug that was shown to support up to 64% development success of Tr. japonicus in the laboratory ( Linder et al 2023 ). Surveys also found parasitism of P. maculiventris by Tr.…”

Section: Discussionmentioning

confidence: 99%

“…Because parasitism of native stink bugs appears much lower (0.4–8%) in the field than that of H. halys (77%), and because several studies demonstrated strong preference towards and higher fitness of Tr. japonicus on H. halys compared to native stink bugs ( Boyle et al 2020 , Malek et al 2021 , Linder et al 2023 ) its redistribution continues within multiple states ( Jentsch 2017 , Milnes and Beers 2019 ). Trissolcus japonicus is expected to be an important component of integrated pest management programs targeting H. halys both in North America and in Europe ( Abram et al 2020 ) and the field releases conducted as part of this study will likely contribute to its widespread establishment and population growth across Michigan.…”

Section: Discussionmentioning

confidence: 99%

“…Parasitoids were allowed to mate prior to releases for at least 48 h. Throughout the rearing process the sex ratio of our Tr. japonicus colony was female biased, with 86–88% females ( Linder et al 2023 ). Releases were aimed to coincide with peak H. halys oviposition that is estimated to occur between 460 and 734 growing degree days (base 14.17 °C starting with 1 January), based on estimates modeled for Geneva, New York ( Nielsen et al 2016 ).…”

Section: Methodsmentioning

confidence: 99%

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Field releases of the exotic parasitoid Trissolcus japonicus (Hymenoptera: Scelionidae) and survey of native parasitoids attacking Halyomorpha halys (Hemiptera: Pentatomidae) in Michigan

Simaz,

Michaelson,

Wilson

et al. 2023

Environmental Entomology

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An adventive population of the exotic parasitoid wasp, Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae), discovered in Michigan in 2018, is a promising biological control agent of the invasive Halyomorpha halys (Stål) (Hemiptera: Pentatomidae). Following its discovery, field releases of Tr. japonicus were conducted over 2 yr in southern Michigan, to test how release size or release frequency impacts establishment. Sentinel eggs of H. halys and of the native Podisus maculiventris (Say) (Hemiptera: Pentatomidae) were used alongside yellow sticky cards to monitor parasitoids. In 2019 and 2020, 7,200 Tr. japonicus were released at 16 sites. Monitoring between 2019 and 2021 yielded only 49 individuals. The captures suggest reproductive activity and overwintering success in the field but do not allow for evaluation of best release methods. Parasitism by native parasitoids was below 7%, which is similar to other states and unlikely to provide sufficient control of H. halys. The placement of sentinel eggs or sticky traps either in the lower or middle canopy of trees did not influence parasitoid capture rates. Frozen and fresh H. halys sentinel eggs were attacked at the same rate, but more native parasitoids emerged from frozen eggs. We did not find signs of nontarget effects on P. maculiventris thus parasitism rates overall were very low. These results could indicate dispersal of Tr. japonicus from the release sites or slow population growth. The latter may be due to the relatively low densities of H. halys in Michigan or may stem from the small founding size of our laboratory colony.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Field releases of the exotic parasitoid Trissolcus japonicus (Hymenoptera: Scelionidae) and survey of native parasitoids attacking Halyomorpha halys (Hemiptera: Pentatomidae) in Michigan

Simaz,

Michaelson,

Wilson

et al. 2023

Environmental Entomology

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Parasitoid speciation and diversification

Hambäck,

Janz,

Braga

2024

Current Opinion in Insect Science

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The life history consequences of host switching in Ooencyrtus egeria (Hymenoptera: Encyrtidae), a parasitoid of stink bug eggs

Sedigh,

Michaud,

Ranjbar

et al. 2024

Environmental Entomology

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The stink bugs Acrosternum arabicum Wagner and Brachynema germari Kolenati (Hemiptera: Pentatomidae) damage developing pistachio nuts in Iran. Ooencyrtus egeria Huang and Noyes (Hymenoptera: Encyrtidae) parasitizes eggs of both species, alternating between them seasonally. We compared the biological and life history attributes of O. egeria reared for 3 generations on each host species with those that had been transferred to the alternate host for 2 generations. We also tested female responses to host egg density. Eggs of B. germari were parasitized at higher rates and yielded faster wasp development, heavier female progeny with greater fecundity, and a more female-biased sex ratio, than eggs of A. arabicum. Rearing on A. arabicum did not diminish wasp fitness on B. germari, and the F1 progeny of wasps switched to A. arabicum inherited some beneficial parental effects from rearing on B. germari. Regardless of host species, females parasitized fewer eggs in 8 h as density increased from 10 to 30 eggs, but progeny sex ratio (% female) increased. The anomalous response to host density appears to arise from a combination of behavioral and egg load constraints. Females mature only 10–12 eggs per day. Carefully inspect egg clusters before selecting the most suitable eggs for oviposition, a more time-consuming process for large clusters. Our results indicate that rearing O. egeria on eggs of A. arabicum, which are more convenient and cost-effective to produce than those of B. germari, will not diminish its performance on B. germari following augmentative release, beyond a slight reduction in female fecundity.

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Non-target attack of the native stink bug, Podisus maculiventris by Trissolcus japonicus, comes with fitness costs and trade-offs

Cited by 5 publications

References 65 publications

Field releases of the exotic parasitoid Trissolcus japonicus (Hymenoptera: Scelionidae) and survey of native parasitoids attacking Halyomorpha halys (Hemiptera: Pentatomidae) in Michigan

Field releases of the exotic parasitoid Trissolcus japonicus (Hymenoptera: Scelionidae) and survey of native parasitoids attacking Halyomorpha halys (Hemiptera: Pentatomidae) in Michigan

Parasitoid speciation and diversification

The life history consequences of host switching in Ooencyrtus egeria (Hymenoptera: Encyrtidae), a parasitoid of stink bug eggs

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