biostudies-literatureShi PQJackfruit Germplasm Resource Nursery of Guangdong provinceFeng Feng Expert Workstation in Yunnan ProvinceJackfruit Science and Technology Backyard in Yunnan's HekouGuangdong Ocean UniversityJackfruit Germplasm Resource Nursery of Guangdong province (Guangdong Ocean University)Yunnan Province Science and Technology Talents and Platform PlanGuangdong Science and Technology DepartmentJackfruit Science and Technology Backyard in Yunnan's Hekouieaf079https://www.ebi.ac.uk/biostudies/studies/S-EPMC12499768biostudies-literatureUnknown25(5)Jackfruit borer, Diaphania caesalis (Walker), is a major boring pest of Artocarpus plants (Moraceae). Biological control is considered an environmentally sustainable means of managing pests. However, parasitoids of D. caesalis in China are unknown. Here, we investigated the parasitoids of D. caesalis through field monitoring and surveys and identified them through morphological observation and DNA barcoding technology. Two hymenopteran parasitoid species, Dolichogenidea sp. and Eulophidae undet. sp., were identified on D. caesalis. The parasitism rate of Dolichogenidea sp. (21.0 ± 1.8%) was significantly higher than that of Eulophidae undet. sp. (3.8 ± 2.2%). The field incidence of Dolichogenidea sp. in the Artocarpus integer and Artocarpus heterophyllus orchards was 30.8 ± 2.5% and 22.3 ±Journal of insect science (Online)Two hymenopteran parasitoid species of the jackfruit borer Diaphania caesalis (Lepidoptera: Pyralidae) in China.PMC12499768A24403202305AF150146R19029Hu JCShi PQFeng LFeng FHuang KCXu JfalseTwo hymenopteran parasitoid species of the jackfruit borer Diaphania caesalis (Lepidoptera: Pyralidae) in China.Jackfruit borer, Diaphania caesalis (Walker), is a major boring pest of Artocarpus plants (Moraceae). Biological control is considered an environmentally sustainable means of managing pests. However, parasitoids of D. caesalis in China are unknown. Here, we investigated the parasitoids of D. caesalis through field monitoring and surveys and identified them through morphological observation and DNA barcoding technology. Two hymenopteran parasitoid species, Dolichogenidea sp. and Eulophidae undet. sp., were identified on D. caesalis. The parasitism rate of Dolichogenidea sp. (21.0 ± 1.8%) was significantly higher than that of Eulophidae undet. sp. (3.8 ± 2.2%). The field incidence of Dolichogenidea sp. in the Artocarpus integer and Artocarpus heterophyllus orchards was 30.8 ± 2.5% and 22.3 ±2025-01-01T00:00:00Z2025 Oct2026-07-15T05:51:53.162Z2026-06-30T03:16:12.788ZS-EPMC124997684105222710.1093/jisesa/ieaf079