Semi-natural habitats promote biological control of Halyomorpha halys (Stål) by the egg parasitoid Trissolcus mitsukurii (Ashmead)

Mele, Alberto; Scaccini, Davide; Zanolli, Penelope; Pozzebon, Alberto

doi:10.1016/j.biocontrol.2021.104833

Cited by 13 publications

(12 citation statements)

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“…15i vs 15ii). The low simulated hyperparasitism by As + reflects the low search rate As α = 0.1 suggested by field data (Mele et al 2022). In the model, the average total season hyperparasitism rate on T. japonicus is ~ 23% and ~ 26% for T. mitsukurii.…”

Section: Natural Enemy Interactionsmentioning

confidence: 84%

“…The simulation model predicts eggparasitism alone would be insufficient to keep the BMSB population below economic levels (see Abram et al 2020), but would help reduce levels beyond the action provided by autochthonous natural enemies (Costi et al 2019;Moraglio et al 2020;Scaccini et al 2020;Zapponi et al 2021). Further, local conditions may promote higher levels of control, as observed by the higher impact of parasitoids in fruit orchards close to semi-natural areas compared to more distant ones (Mele et al 2022).…”

Section: Discussionmentioning

confidence: 99%

“…In parasitoid wasps, conditioning during "critical periods" during the adult stage may have a profound impact on host selection behavior (van Emden et al 1996;Bjorksten and Hoffmann 1998;Barron 2001). Hence, the strong laboratory host preferences demonstrated in A. sinicus by Mele et al (2021) may not be applicable to the field where hyperparasitism levels are low (Mele et al 2022). In the model, we assumed equal preference for T. japonicus and T. mitsukurii, but the capacity to incorporate unequal preference is a component.…”

Section: Discussionmentioning

confidence: 99%

“…Laboratory studies by Mele et al (2021) found a > 20:1 A. sinicus preference for T. mitsukurii over T. japonicus when A. sinicus was reared on T. mitsukurii (see discussion section). However, in field studies in northeastern Italy when only T. mitsukurii was present (see Zapponi et al 2021), A. sinicus parasitism rates on T. mitsukurii were ~ 7.5% (Mele et al 2022) suggesting a low search rate ( As α).…”

Section: Biology Of the Hyperparasitoid A Sinicusmentioning

confidence: 99%

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Tritrophic analysis of the prospective biological control of brown marmorated stink bug, Halyomorpha halys, under extant weather and climate change

et al. 2023

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The highly destructive Asian brown marmorated stink bug (Halyomorpha halys, BMSB) invaded Europe, Caucasus region, and North and South America. Efforts to control it are ongoing in the Palearctic European-Mediterranean Basin and North America by introducing and redistributing two Asian stenophagous scelionid egg parasitoids (Trissolcus japonicus and T. mitsukurii) that are attacked by an adventive oligophagous pteromalid Asian hyperparasitoid (Acroclisoides sinicus). Large BMSB nymphs and adults may be parasitized by new associations of oligophagous tachinid flies and immature stages by egg parasitoids and predators. The terms stenophagous and oligophagous are commonly used to define narrow and wider ranges, respectively, of food eaten, but here they refer to the range of hosts attacked by adult female parasitoids. A holistic weather-driven physiologically based demographic model (PBDM) of the tritrophic interactions was developed to evaluate prospectively the impact of natural enemies on the biological control of BMSB under current and climate change weather. Our study focuses on the European-Mediterranean region, with the results for the USA, Mexico, and Central America reported as supplementary information. The PBDM analysis suggests that biotypes of the egg parasitoids T. japonicus and T. mitsukurii with high search capacity could suppress BMSB regionally, but the requisite levels of parasitism by these parasitoids for economic control are not observed in their native range nor in invaded areas. The model suggests that the action of T. japonicus is greater than that of T. mitsukurii, but that joint interactions of the two egg parasitoids would provide higher mortality of BMSB. Field data and model results suggest that the egg hyperparasitoid A. sinicus has a modest negative impact on the suppression of BMSB. Moreover, tachinid parasitoids of adults could have an important supplemental role in suppressing BMSB densities. Analysis suggests that new biotypes of egg parasitoids and species of tachinid parasitoids of large nymphs and adults be sought.

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Section: Natural Enemy Interactionsmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Biology Of the Hyperparasitoid A Sinicusmentioning

confidence: 99%

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Tritrophic analysis of the prospective biological control of brown marmorated stink bug, Halyomorpha halys, under extant weather and climate change

et al. 2023

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“…For T. mitsukurii in the release, both efficacy index sites were approximately a tenth of what was recorded for other adventive populations of this species. 79 Female parasitoids from the family Scelionidae tend to exhibit aggressive behaviors to monopolize hosts when these are spatially aggregated, and several species perform brood guarding and fighting. 80 Laboratory experiments performed on T. mitsukurii and T. japonicus showed that both species can exhibit intrinsic competition (being able to oviposit on eggs previously parasitized by the other species) and interference competition, with chase-off events, more frequently shown by T. mitsukurii, when it arrived first on the egg mass.…”

Section: Discussionmentioning

confidence: 99%

Factors influencing short‐term parasitoid establishment and efficacy for the biological control ofHalyomorpha halyswith the samurai waspTrissolcus japonicus

Falagiarda¹,

Carnio

Chiesa

et al. 2023

Pest Management Science

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BACKGROUND Classical biological control has been identified as the most promising approach to limit the impact of the invasive pest species Halyomorpha halys (Heteroptera: Pentatomidae). This study investigated the parasitism rate at sites where the biocontrol agent Trissolcus japonicus (Hymenoptera: Scelionidae) was released and where its unintentional introduction took place, in the Trentino–South Tyrol region. The effect of land‐use composition was studied to understand which factors favor the establishment of hosts and parasitoids, including native and exotic species. RESULTS The released T. japonicus were detected a year after the start of the program, with a significant parasitoid impact and discovery, compared to control sites. Trissolcus japonicus was the most abundant H. halys parasitoid, and Trissolcus mitsukurii and Anastatus bifasciatus were recorded also. The efficacy of T. mitsukurii was lower in sites where T. japonicus was successfully established, suggesting a possible competitive interaction. Parasitism level by T. japonicus at the release sites was 12.5% in 2020 and 16.4% in 2021. The combined effect of predation and parasitization increased H. halys mortality up to 50% at the release sites. Landscape composition analysis showed that both H. halys and T. japonicus were more likely to be found at sites with lower altitude and with permanent crops, whereas other hosts and parasitoids preferred different conditions. CONCLUSION Trissolcus japonicus showed a promising impact on H. halys, at release and adventive sites, with minor nontarget effects, mediated by landscape heterogeneity. The prevalence of T. japonicus in landscapes with permanent crops could support IPM in the future. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Invasion risks presented by Gonopsis affinis and the use of Trissolcus mitsukurii as a biological control agent under present and future climate conditions

Lian

Wei

Chen

et al. 2023

Pest Management Science

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BackgroundGonopsis affinis (Uhler) is a stinkbug that represents a significant threat to the production of rice (Oryza sativa L.), sugarcane (Saccharum officinarum L.) and eulalia (Miscanthus sinensis (Andersson)), and has been listed as a sugarcane pest in Japan. Trissolcus mitsukurii Ashmead is an egg parasitoid of G. affinis. To determine the potential of T. mitsukurii to be a biological control agent for G. affinis, we aim to predict the current and future areas of suitable habitat for these two species and their overlap with areas of present crop production. We developed MaxEnt models using two different variable selection methods and compared the two for T. mitsukurii with a CLIMEX model.ResultsThe results showed extensive suitable areas for G. affinis under current climate conditions in East Asia, West Africa, Madagascar, and South America. These ranges overlap with areas currently being used for the production of the three crops in question. More than half overlap with areas of suitable habitat for T. mitsukurii. The most critical environmental variable determining habitat suitability for G. affinis was showed to be precipitation of warmest quarter, whilst for T. mitsukurii it was min temperature of the coldest month.ConclusionBased on our assessment we recommend the immediate implementation of monitoring and invasion prevention measures for G. affinis in southwest China, the Malay Archipelago and West Africa. We suggest that T. mitsukurii be considered for use as a biological control agent in East Asia, Madagascar, Florida and Brazil in the case of future invasions by G. affinis.This article is protected by copyright. All rights reserved.

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Semi-natural habitats promote biological control of Halyomorpha halys (Stål) by the egg parasitoid Trissolcus mitsukurii (Ashmead)

Cited by 13 publications

References 78 publications

Tritrophic analysis of the prospective biological control of brown marmorated stink bug, Halyomorpha halys, under extant weather and climate change

Tritrophic analysis of the prospective biological control of brown marmorated stink bug, Halyomorpha halys, under extant weather and climate change

Factors influencing short‐term parasitoid establishment and efficacy for the biological control ofHalyomorpha halyswith the samurai waspTrissolcus japonicus

Invasion risks presented by Gonopsis affinis and the use of Trissolcus mitsukurii as a biological control agent under present and future climate conditions

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