Surveying native egg parasitoids and predators of the invasive Halyomorpha halys in Northern Italy

2018 ◽  
Vol 143 (3) ◽  
pp. 299-307 ◽  
Author(s):  
Elena Costi ◽  
Tim Haye ◽  
Lara Maistrello
Keyword(s):  
Egg Parasitoids ◽  
Northern Italy ◽  
Halyomorpha Halys

A 3-year survey on parasitism of Halyomorpha halys by egg parasitoids in northern Italy

2019 ◽  
Vol 93 (1) ◽  
pp. 183-194 ◽  
Author(s):  
Silvia T. Moraglio ◽  
Francesco Tortorici ◽  
Marco G. Pansa ◽  
Gabriele Castelli ◽  
Marianna Pontini ◽  
...  
Keyword(s):  
Egg Parasitoids ◽  
Northern Italy ◽  
Halyomorpha Halys

scholarly journals Two Asian egg parasitoids of Halyomorpha halys (Stål) (Hemiptera, Pentatomidae) emerge in northern Italy: Trissolcus mitsukurii (Ashmead) and Trissolcus japonicus (Ashmead) (Hymenoptera, Scelionidae)

2018 ◽  
Vol 67 ◽  
pp. 37-53 ◽  
Author(s):  
Giuseppino Sabbatini Peverieri ◽  
Elijah Talamas ◽  
Marie Claude Bon ◽  
Leonardo Marianelli ◽  
Iris Bernardinelli ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Egg Parasitoids ◽  
Northern Italy ◽  
Halyomorpha Halys ◽  
Agricultural Pest ◽  
Human Intervention ◽  
Population Densities ◽  
Original Distribution ◽  
Trissolcus Japonicus ◽  
Made In

Halyomorphahalys(Stål) is a severe agricultural pest that is spreading worldwide from its original distribution in Asia. Egg parasitoids from Asia, which play a key role in the population dynamics ofH.halys, are following its host along global pathways. We present the first records ofTrissolcusmitsukuriiin Europe, and ofTrissolcusjaponicusin Italy. Both discoveries were made in northern Italy, whereH.halysis widely present and has reached extremely high population densities in some areas. Given the availability of their host, the distributions and populations of these exotic egg parasitoids are expected to expand, even in the absence of human intervention.

scholarly journals Rearing Trissolcus japonicus and Trissolcus mitsukurii for Biological Control of Halyomorpha halys

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 787
Author(s):  
Giuseppino Sabbatini-Peverieri ◽  
Christine Dieckhoff ◽  
Lucrezia Giovannini ◽  
Leonardo Marianelli ◽  
Pio Federico Roversi ◽  
...  
Keyword(s):  
Biological Control ◽  
Control Method ◽  
Egg Parasitoids ◽  
Halyomorpha Halys ◽  
Progeny Production ◽  
Asian Origin ◽  
Frequent Use ◽  
Trissolcus Japonicus ◽  
Cumulative Curves

Halyomorpha halys is a severe agricultural pest of Asian origin that has invaded many countries throughout the world. Pesticides are currently the favored control methods, but as a consequence of their frequent use, often disrupt Integrated Pest Management. Biological control with egg parasitoids is seen as the most promising control method over the long-term. Knowledge of the reproductive biology under laboratory conditions of the most effective candidates (Trissolcus japonicus and Trissolcus mitsukurii) for optimizing production for field releases is strongly needed. Rearing of these egg parasitoids was tested by offering three different host supply regimes using new emerged females and aged, host-deprived females in different combinations. Results showed a mean progeny per female ranging from 80 to 85 specimens for T. japonicus and from 63 to 83 for T. mitsukurii. Sex ratios were strongly female biased in all combinations and emergence rates exceeded 94% overall. Cumulative curves showed that longer parasitization periods beyond 10–14 days (under the adopted rearing regimes) will not lead to a significantly increase in progeny production. However, ageing females accumulate eggs in their ovaries that can be quickly laid if a sufficient number of host eggs are supplied, thus optimizing host resources. Our data showed that offering H. halys egg masses to host-deprived female Trissolcus once a week for three weeks allowed its eggs to accumulate in the ovary, providing the greatest number of offspring within a three week span.

scholarly journals Assemblage of the Egg Parasitoids of the Invasive Stink Bug Halyomorpha halys: Insights on Plant Host Associations

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 588
Author(s):  
Livia Zapponi ◽  
Marie Claude Bon ◽  
Jalal Melhem Fouani ◽  
Gianfranco Anfora ◽  
Silvia Schmidt ◽  
...  
Keyword(s):  
Biological Control ◽  
Mitochondrial Gene ◽  
Strong Support ◽  
Egg Parasitoids ◽  
Economic Losses ◽  
Halyomorpha Halys ◽  
Stink Bug ◽  
Plant Host ◽  
Egg Masses ◽  
Host Associations

Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) is an invasive alien species and a key agricultural pest. Its native parasitoids (Trissolcus japonicus Ashmead and Tr. mitsukurii Ashmead) have been registered in several countries where H. halys brought dramatic economic losses and where biological control is considered to be the most effective long-term solution. By searching for stink bug egg masses and exposing sentinel egg masses, we monitored the distribution of native and exotic egg parasitoids in Trentino-Alto Adige (Italy), an area where both the host and parasitoids are in expansion. We recorded ten pentatomids, seven parasitoid species, with the first report of Tr. japonicus in this area and a hyperparasitoid. In the assemblage, Anastatus bifasciatus (Geoffroy) and Tr. mitsukurii were the dominant parasitoids, with a different distribution in terms of context and host plants. Sycamore was the host plant where the highest number of naturally laid parasitized egg masses (26%) were recorded. Trissolcus mitsukurii showed the highest parasitism rate, and was often found in apple orchards. The emergence of exotic parasitoids showed a temporal delay compared to native ones. Sequence analysis of 823 bp of the CO1 mitochondrial gene revealed that the recovered Tr. japonicus and Tr. mitsukurii harbored one single haplotype each. These haplotypes were previously found in 2018 in Northern Italy. While sentinel egg masses proved to be very effective in tracking the arrival of exotic Trissolcus species, the collection of stink bug egg masses provided fundamental data on the plant host species. The results lend strong support to the adaptation of exotic Trissolcus species to the environmental conditions of the range of introduction, providing new information on plant host-associations, fundamental for the development of biological control programs.

Native egg parasitoids recorded from the invasive Halyomorpha halys successfully exploit volatiles emitted by the plant–herbivore complex

2017 ◽  
Vol 90 (4) ◽  
pp. 1087-1095 ◽  
Author(s):  
Gabriele Rondoni ◽  
Valeria Bertoldi ◽  
Robert Malek ◽  
Maria Cristina Foti ◽  
Ezio Peri ◽  
...  
Keyword(s):  
Egg Parasitoids ◽  
Halyomorpha Halys ◽  
Plant Herbivore

scholarly journals Population genetics of the brown marmorated stink bug Halyomorpha halys in the early phase of invasion in South Tyrol (Northern Italy)

2020 ◽  
pp. 1-8
Author(s):  
Hannes Schuler ◽  
David Elsler ◽  
Stefanie Fischnaller
Keyword(s):  
Haplotype Diversity ◽  
Northern Italy ◽  
Small Scale ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug ◽  
Invasion Pathways ◽  
Long Distance ◽  
South Tyrol ◽  
Invasion Pathway

Abstract The brown marmorated stink bug Halyomorpha halys is one of the most harmful invasive species in the world. Native to East Asia, this insect was introduced into North America in the 1990s and into Europe in the 2000s where it subsequently established and spread across the continent. Previous population genetic studies determined the invasion pathways at continental and national levels. However, information on the dynamics on a small-scale is currently scarce. Here we study the genetic diversity and population dynamics of H. halys in South Tyrol, a region in Northern Italy, since its arrival to its widespread establishment over a period of four years. By haplotyping 162 individuals from ten populations (including six previously published individuals) we found a high haplotype diversity in most populations with an increasing diversity across the different years. Most haplotypes were previously found in other regions of Northern Italy, providing evidence for migration from neighboring regions. However, the presence of four previously undescribed haplotypes as well as a haplotype previously found exclusively in Greece highlights additional long-distance dispersal across the continent. Phylogenetic analysis of the haplotypes found in South Tyrol showed that the majority of haplotypes clustered with haplotypes predominantly found in Japan. This suggests a potential recent introduction of H. halys individuals from Japan into Europe, and thus an additional invasion pathway that was previously unidentified.

scholarly journals Molecular phylogeny of Trissolcus wasps (Hymenoptera, Scelionidae) associated with Halyomorpha halys (Hemiptera, Pentatomidae)

2019 ◽  
Vol 73 ◽  
pp. 201-217 ◽  
Author(s):  
Elijah J. Talamas ◽  
Marie-Claude Bon ◽  
Kim A. Hoelmer ◽  
Matthew L. Buffington
Keyword(s):  
Molecular Phylogeny ◽  
Northern Hemisphere ◽  
Phylogenetic Analyses ◽  
Species Group ◽  
Egg Parasitoids ◽  
Species Level ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug

As the brown marmorated stink bug (Halyomorpha halys) has spread across the Northern Hemisphere, research on its egg parasitoids has increased accordingly. These studies have included species-level taxonomy, experimental assessments of host ranges in quarantine, and surveys to assess parasitism in the field. We here present a molecular phylogeny of Trissolcus that includes all species that have been reared from live H. halys eggs. Species-group concepts are discussed and revised in the light of the phylogenetic analyses. The analyses indicate that the ability to successfully parasitize H. halys eggs is not phylogenetically constrained, but the most effective parasitoids are all found in the flavipes species group.

Seasonal parasitism of native egg parasitoids of brown marmorated stink bug (Halyomorpha halys) in Japan

2021 ◽  
Author(s):  
Matthew T. Kamiyama ◽  
Kenji Matsuura ◽  
Toshimitsu Hata ◽  
Tsuyoshi Yoshimura ◽  
Chin-Cheng Scotty Yang
Keyword(s):  
Egg Parasitoids ◽  
Halyomorpha Halys ◽  
Brown Marmorated Stink Bug ◽  
Stink Bug
Sign in / Sign up

Export Citation Format

Share Document