The brown marmorated stink bug Halyomorpha halys is an invasive agricultural pest with a worldwide distribution. Classical biological control has been identified as the most promising method to reduce the populations of H. halys. Adventive populations of two candidates for releases, Trissolcus japonicus and Trissolcus mitsukurii, have recently been detected in Europe. To assess their distribution and abundance, a large-scale survey was performed. From May to September 2019, a wide area covering northern Italy and parts of Switzerland was surveyed, highlighting the expanding distribution of both Tr. japonicus and Tr. mitsukurii. Within four years after their first detection in Europe, both species have rapidly spread into all types of habitats where H. halys is present, showing a wide distribution and continuous expansion. Both exotic Trissolcus showed high levels of parasitism rate towards H. halys, while parasitization of non-target species was a rare event. The generalist Anastatus bifasciatus was the predominant native parasitoid of H. halys, while the emergence of native scelionids from H. halys eggs was rarely observed. The presence of the hyperparasitoid Acroclisoides sinicus was also recorded. This study provided fundamental data that supported the development of the first inoculative release program of Tr. japonicus in Europe.
Zapponi, L.; Tortorici, F.; Anfora, G.; Bardella, S.; Bariselli, M.; Benvenuto, L.; Bernardinelli, I.; Butturini, A.; Caruso, S.; Colla, R.; Costi, E.; Culatti, P.; Di Bella, E.; Falagiarda, M.; Giovannini, L.; Haye, T.; Maistrello, L.; Malossini, G.; Marazzi, C.; Marianelli, L.; Mele, A.; Michelon, L.; Moraglio, S.T.; Pozzebon, A.; Preti, M.; Salvetti, M.; Scaccini, D.; Schmidt, S.; Szalatnay, D.; Roversi, P.F.; Tavella, L.; Tommasini, M.G.; Vaccari, G.; Zandigiacomo, P.; Sabbatini Peverieri, G. (2021). Assessing the distribution of exotic egg parasitoids of Halyomorpha halys in Europe with a large-scale monitoring program. INSECTS, 12 (4): 316. doi: 10.3390/insects12040316 handle: http://hdl.handle.net/10449/67888
Assessing the distribution of exotic egg parasitoids of Halyomorpha halys in Europe with a large-scale monitoring program
Zapponi, L.Primo
Writing – Original Draft Preparation
;Anfora, G.Writing – Review & Editing
;
2021-01-01
Abstract
The brown marmorated stink bug Halyomorpha halys is an invasive agricultural pest with a worldwide distribution. Classical biological control has been identified as the most promising method to reduce the populations of H. halys. Adventive populations of two candidates for releases, Trissolcus japonicus and Trissolcus mitsukurii, have recently been detected in Europe. To assess their distribution and abundance, a large-scale survey was performed. From May to September 2019, a wide area covering northern Italy and parts of Switzerland was surveyed, highlighting the expanding distribution of both Tr. japonicus and Tr. mitsukurii. Within four years after their first detection in Europe, both species have rapidly spread into all types of habitats where H. halys is present, showing a wide distribution and continuous expansion. Both exotic Trissolcus showed high levels of parasitism rate towards H. halys, while parasitization of non-target species was a rare event. The generalist Anastatus bifasciatus was the predominant native parasitoid of H. halys, while the emergence of native scelionids from H. halys eggs was rarely observed. The presence of the hyperparasitoid Acroclisoides sinicus was also recorded. This study provided fundamental data that supported the development of the first inoculative release program of Tr. japonicus in Europe.
| File | Dimensione | Formato | |
|---|---|---|---|
|
Zapponi et al 2021_Insects.pdf
accesso aperto
Tipologia:
Versione editoriale (Publisher’s layout)
Licenza:
Creative commons
Dimensione
1.64 MB
Formato
Adobe PDF
|
1.64 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
