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ARS Home » Northeast Area » Newark, Delaware » Beneficial Insects Introduction Research Unit » Research » Publications at this Location » Publication #414507
Research Project: Biology, Ecology, Genetics, and Genomics of Introduced Species for Biological Control of Invasive and Other Insect Pests

Location: Beneficial Insects Introduction Research Unit

Title: Trissolcus comperei, a newly-reported egg parasitoid of Halyomorpha halys from China

Author
item SHANG, CHENG-JIE - Guizhou University
item TALAMAS, ELIJAH - Florida Department Of Agriculture And Consumer Services
item Wang, Xingeng
item CHEN, YONG-MING - Guizhou University
item ZANG, LIAN-SHENG - Guizhou University

Submitted to: Biological Control
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 7/12/2024
Publication Date: 7/14/2024
Citation: Shang, C., Talamas, E.N., Wang, X., Chen, Y., Zang, L. 2024. Trissolcus comperei, a newly-reported egg parasitoid of Halyomorpha halys from China. Biological Control. https://doi.org/10.1016/j.biocontrol.2024.105583.
DOI: https://doi.org/10.1016/j.biocontrol.2024.105583

Interpretive Summary: The brown marmorated stink bug (BMSB) has become a serious invasive pest in North America and Europe. BMSB has an extremely wide host range in both its native and invaded ranges, and can cause severe damage to various tree fruits, vegetables, field crops and ornamentals. Biological control can be a viable option for sustainable management of this invasive pest, especially using natural enemies from the pest's native range (China). Currently, one native parasitic wasp from China has established in the US (presumed to be accidentally introduced) and the impact of the parasitic wasp on BMSB is still under evaluation. This current study discovered a new parasitic wasp collected from BMSB in China. Preliminary evaluations show some potential of this new parasitic wasps for biological control of BMSB.

Technical Abstract: Native to Asia, the brown marmorated stink bug (BMSB), Halyomorpha halys (Stål) has become a serious invasive pest in North America and Europe. BMSB has an extremely wide host range in both its native and invaded ranges, and can cause severe damage to various tree fruits, vegetables, field crops and ornamentals. Species of Trissolcus are the major BMSB egg parasitoids especially T. japonicus (Ashmead), T. mitsukurii (Ashmead) and A. bifasciatus (Geoffroy) that have recently been studied as biological control agents for this invasive pest. In this study, we report a new parasitoid parasitizing BMSB eggs collected in Guizhou Province, China, and it was identified as Trissolcus comperei (Crawford) using morphological and molecular methods. We provide images of T. comperei male, male genitalia, and immature stages, and describe some biological characteristics of T. comperei parasitizing BMSB eggs and parasitism capacity. Under 25 ± 1 °C, T. comperei egg hatched within 24 hours, larva, perpupa and pupa developed in 1–3, 4–6 and 7–11 days, respectively. The parasitoid could parasitize 0-, 2- and 4-day old BMSB eggs. Host egg age did not influence emergence rate of adult wasps (90.2–93.3%). However, both the number of parasitized eggs (0.57–6.07 eggs / 24h) and percentage of female progeny (60.0–93.0%) decreased with increasing host egg age. In addition, we provide a complete list of all 16 known Trissolcus species in China; seven of them have been reported to parasitize BMSB eggs, including T. comperei from this study. This information enriches the knowledge of the egg parasitoids of BMSB. Moreover, the high emergence rate and female-biased offspring of T. comperei are important attributes as a potential biological control agent for BMSB.