Halyomorpha halys and its egg parasitoids Trissolcus japonicus and T. mitsukurii: the geographic dimension of the interaction

By

Tortorici, Francesco
Bombi, Pierluigi
Loru, Laura
Mele, Alberto
Moraglio, Silvia
Scaccini, Davide
Pozzebon, Alberto
Pantaleoni, Roberto
Tavella, Luciana

Type

Article

Date of Publication

2023

Original Publication

NeoBiota : advancing research on alien species and biological invasions

Volume

85

Pages

197--221

Subjects

biological control agents , brown marmorated stink bug , Maxent , Pentatomidae , Scelionidae , species distribution modeling (SDM)

Contributed by

Pensoft Publishers

Language

English

Published by

Sophia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/neobiota.85.102501

 

Abstract

Halyomorpha halys(Stål) (Hemiptera, Pentatomidae) was accidentally introduced to North America and Europe, becoming a key pest of many important crops. In its native range, it is attacked by egg parasitoids, includingTrissolcus japonicus(Ashmead), considered to be the main species, andT. mitsukurii(Ashmead) (Hymenoptera, Scelionidae).Trissolcus japonicuswas detected in North America in 2014 and Europe in 2017, whileT. mitsukuriiwas detected in Australia in the early 20thcentury and in Europe in 2016. Both species now appear established in the new areas. The present study used the MaxEnt algorithm to clarify the geographic dimension of the potential interaction betweenH. halysand these two parasitoid species, and to indicate where the release of one or the other parasitoid species is more likely to be effective. We found that the suitability for the two parasitoids overlaps theH. halysnative range completely. In invaded areas,T. japonicusshowed higher potential habitat suitability at the global scale, compared toT. mitsukurii, and also higher potential suitability at lower latitudes at continental and national scales. These results can substantially improve the effectiveness of biological control againstH. halys, by targeting the releases of parasitoids to the areas where each species is most likely to succeed.