<i>Graphosoma lineatum</i> (Hemiptera: Pentatomidae): a suitable host for mass rearing <i>Ooencyrtus telenomicida</i> (Hymenoptera: Encyrtidae)

Roversi, Pio Federico; Maltese, Matteo; Simoni, Sauro; Cascone, Pasquale; Binazzi, Francesco; Strangi, Agostino; Peverieri, Giuseppino Sabbatini; Guerrieri, Emilio

doi:10.1080/09670874.2017.1403059

Cited by 8 publications

(8 citation statements)

References 27 publications

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“…As in the case of A. bifasciatus, the sex ratio of O. telenomicida was female biased (1.86:1), in accordance with that recorded in a laboratory study in Italy, when O. telenomicida was reared on Graphosoma lineatum (Hemiptera: Petatomidae) eggs at temperatures above 26 and 30 • C [50]. According to the literature available, the host species does not affect sex ratio in O. telenomicida [47,48]; however, temperature does play a role in influencing sex ratio with a decrease in the number of females associated with lower temperatures [50]. Interestingly, O. telenomicida seems to be more frequent in mid-June, while A. bifasciatus appears to be in higher numbers during the second half of August, which is in contrast to the findings of a previous study conducted in Central Italy [23].…”

Section: Discussionsupporting

confidence: 87%

“…This may be explained by the climatic and environmental differences between the surveyed regions or the local availability and abundance of the natural host(s) of O. telenomicida [32]. As in the case of A. bifasciatus, the sex ratio of O. telenomicida was female biased (1.86:1), in accordance with that recorded in a laboratory study in Italy, when O. telenomicida was reared on Graphosoma lineatum (Hemiptera: Petatomidae) eggs at temperatures above 26 and 30 • C [50]. According to the literature available, the host species does not affect sex ratio in O. telenomicida [47,48]; however, temperature does play a role in influencing sex ratio with a decrease in the number of females associated with lower temperatures [50].…”

Section: Discussionsupporting

confidence: 83%

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First Report of Native Parasitoids of Halyomorpha halys (Hemiptera: Pentatomidae) in Greece

Andreadis¹,

Gogolashvili

Fifis

et al. 2021

Insects

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Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is an endemic species of East Asia; it was introduced into Europe in 2007. It has a wide range of hosts as it feeds on over 170 host plant species and significantly impacts crop production. In Greece, H. halys causes significant losses in the production of kiwi, peaches, and green beans; thus, control of this species (including biological control) is essential. Here, we focus on the potential impact of native natural enemies of H. halys in Greece. From June to October 2020, we sampled naturally field-laid H. halys egg masses to recover native parasitoids. A total of 20 egg masses of H. halys were collected from infested fields from different locations in northern Greece. Out of 529 eggs, 45 parasitoids managed to hatch successfully. The overall parasitism rate was 8.5%. We found two species of Hymenopteran egg parasitoids attacking H. halys eggs—Anastatus bifasciatus (Geoffrey) (Hymenoptera: Eupelmidae) and Ooencyrtus telenomicida (Vassiliev) (Hymenoptera: Encyrtidae), with the former comprising 58% of all parasitoids that were recovered. These results contribute to the knowledge about the natural enemy community that attacks H. halys in Greece, and the use of these native egg parasitoids in biological control programs may be a viable H. halys management strategy.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 83%

First Report of Native Parasitoids of Halyomorpha halys (Hemiptera: Pentatomidae) in Greece

Andreadis¹,

Gogolashvili

Fifis

et al. 2021

Insects

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“…Several hymenopteran egg parasitoids are known to attack Pentatomidae, including Scelionidae ( Gryon Haliday, Psix Kozlov & Lê, Telenomus Haliday, Trissolcus Ashmead), Eupelmidae ( Anastatus Motschulsky) and Encyrtidae ( Ooencyrtus Ashmead) (Orr, ). The eupelmids and encyrtids associated with pentatomids are generalists and include members that are facultative hyperparasitoids (Choi et al., ; Cusumano, Peri, Amodeo, McNeil, & Colazza, ; Roversi et al., ). In contrast, scelionids in the genus Trissolcus and several species in the genus Telenomus are strictly associated with Pentatomidae, cause high levels of parasitism, and are used as biological control agents for native and invasive pentatomid species (Orr, ; Orr, Russin, Boethel, & Jones, ; Yeargan, ).…”

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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“…Therefore, the reduction in the number of eggs resulting from the increase in the age of the female progenitor may affect the process of nutrition of the offspring, thereby decreasing their aptitude and longevity (Lansing, 1947;Kindsvater & Otto, 2014;Plaistow et al, 2015;Muller et al, 2017). Unlike this, the age of the eggs of N. viridula did not have any effect on the longevity of O. submetallicus and it survived more than ten days, however, when compared to other host species and submitted to different diets, the longevity of the parasitoid may suffer several variations (Roversi et al, 2018).…”

Section: Discussionmentioning

confidence: 94%

Reproduction of Ooencyrtus submetallicus (Hymenoptera: Encyrtidae) and Trissolcus sp. aff. urichi (Hymenoptera: Scelionidae) in Eggs of Nezara viridula (Hemiptera: Pentatomidae) of Different Ages

Faca¹,

Pereira²,

Fernandes³

et al. 2021

JAS

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The study of the interaction between parasitoid and host, especially the age of these organisms, is an important step towards the implementation of biological control programs. Therefore, we investigated the performance of Ooencyrtus submetallicus (Hymenoptera: Encyrtidae) and Trissolcus sp. aff. urichi (Hymenoptera: Scelionidae) parasitizing eggs of Nezara viridula (Hemiptera: Pentatomidae), considering different ages of the parasitoids and the host. We performed four laboratory bioassays: two using females of O. submetallicus and Trissolcus sp. aff. urichi at 24, 48, 72, 96, 120, or 144 hours of age exposed to parasitism in N. viridula eggs (24 h) and two trials with N. viridula eggs at 24, 48, 72, 96, 120, or 144 hours exposed to the parasitism of O. submetallicus and Trissolcus sp. aff. urichi (24 h). We evaluated the percentage of parasitism and emergence, life cycle length, progeny, sex ratio, and the longevity of the parasitoids. The parasitism of O. submetallicus in N. viridula eggs was influenced by the age of the parasitoid, 120 hours being the minimum to obtain better parasitism. From this age on, there is interference in the longevity of the progeny. Trisolcus sp. aff. urichi, at all ages, parasitized N. viridula eggs relatively well, but with almost no emergence of the parasitized eggs. Females of O. submetallicus parasitized and developed in eggs of N. viridula of all ages. Females of Trissolcus sp. aff. urichi parasitized their host, but there was barely any emergence. These pieces of information regarding the breeding methodology contribute to the implementation of new protocols for the multiplication of these parasitoids in the laboratory, and later, their release in the field.

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Graphosoma lineatum (Hemiptera: Pentatomidae): a suitable host for mass rearing Ooencyrtus telenomicida (Hymenoptera: Encyrtidae)

Cited by 8 publications

References 27 publications

First Report of Native Parasitoids of Halyomorpha halys (Hemiptera: Pentatomidae) in Greece

First Report of Native Parasitoids of Halyomorpha halys (Hemiptera: Pentatomidae) in Greece

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

Reproduction of Ooencyrtus submetallicus (Hymenoptera: Encyrtidae) and Trissolcus sp. aff. urichi (Hymenoptera: Scelionidae) in Eggs of Nezara viridula (Hemiptera: Pentatomidae) of Different Ages

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