Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>

Parasitoid wasps are vital for biological control, and while new species continue to be discovered, evaluating their biological characteristics is crucial for realizing their potential for pest management. <i>Pachycrepoideus vindemiae</i> (Rondani) (Hymenoptera: Pteromalidae) is a well-s...

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Main Authors: Ziwen Teng, Yiting Wang, Minghao Jiang, Yikun Zhang, Xintong Wang, Fanghao Wan, Hongxu Zhou
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Insects
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Online Access:https://www.mdpi.com/2075-4450/16/7/708
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author Ziwen Teng
Yiting Wang
Minghao Jiang
Yikun Zhang
Xintong Wang
Fanghao Wan
Hongxu Zhou
author_facet Ziwen Teng
Yiting Wang
Minghao Jiang
Yikun Zhang
Xintong Wang
Fanghao Wan
Hongxu Zhou
author_sort Ziwen Teng
collection DOAJ
description Parasitoid wasps are vital for biological control, and while new species continue to be discovered, evaluating their biological characteristics is crucial for realizing their potential for pest management. <i>Pachycrepoideus vindemiae</i> (Rondani) (Hymenoptera: Pteromalidae) is a well-studied parasitoid of dipteran pests, while <i>Trichomalopsis ovigastra</i> Sureshan & Narendran (Hymenoptera: Pteromalidae) has been only morphologically described. To assess its biocontrol potential, we compared the biological traits of <i>T. ovigastra</i> and <i>P. vindemiae</i> using <i>Drosophila melanogaster</i> Meigen (Diptera: Drosophilidae) and <i>Bactrocera dorsalis</i> (Hendel) (Diptera: Tephritidae) as hosts. <i>T. ovigastra</i> showed significantly higher parasitism rates, especially against <i>B. dorsalis</i>, where <i>T. ovigastra</i> achieved nearly 50% parasitism, compared to less than 0.3% by <i>P. vindemiae</i>. When using <i>D. melanogaster</i> as the host, no significant differences were observed between <i>T. ovigastra</i> and <i>P. vindemiae</i> in offspring sex ratio or adult longevity; however, <i>T. ovigastra</i> exhibited a shorter developmental duration and greater tolerance to temperature extremes, starvation, and desiccation. Notably, <i>B. dorsalis</i> has expanded its range from southern to northern China; however, no native parasitoids of this pest have been reported in the newly invaded northern regions. <i>T. ovigastra</i>, collected from northern orchards and capable of parasitizing <i>B. dorsalis</i>, thus shows promise as a biocontrol agent. These findings highlight the potential of locally occurring parasitoids, although field validation is still required.
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spelling doaj-art-692f8f7445a84b6187bf0f85669a533d2025-08-20T02:45:43ZengMDPI AGInsects2075-44502025-07-0116770810.3390/insects16070708Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>Ziwen Teng0Yiting Wang1Minghao Jiang2Yikun Zhang3Xintong Wang4Fanghao Wan5Hongxu Zhou6Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, Shandong Province Laboratory for Biological Invasions and Ecological Security, China-Australia Cooperative Research Center for Crop Health and Biological Invasions, College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, Shandong Province Laboratory for Biological Invasions and Ecological Security, China-Australia Cooperative Research Center for Crop Health and Biological Invasions, College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, Shandong Province Laboratory for Biological Invasions and Ecological Security, China-Australia Cooperative Research Center for Crop Health and Biological Invasions, College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, Shandong Province Laboratory for Biological Invasions and Ecological Security, China-Australia Cooperative Research Center for Crop Health and Biological Invasions, College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, Shandong Province Laboratory for Biological Invasions and Ecological Security, China-Australia Cooperative Research Center for Crop Health and Biological Invasions, College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, Shandong Province Laboratory for Biological Invasions and Ecological Security, China-Australia Cooperative Research Center for Crop Health and Biological Invasions, College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, Shandong Province Laboratory for Biological Invasions and Ecological Security, China-Australia Cooperative Research Center for Crop Health and Biological Invasions, College of Plant Health & Medicine, Qingdao Agricultural University, Qingdao 266109, ChinaParasitoid wasps are vital for biological control, and while new species continue to be discovered, evaluating their biological characteristics is crucial for realizing their potential for pest management. <i>Pachycrepoideus vindemiae</i> (Rondani) (Hymenoptera: Pteromalidae) is a well-studied parasitoid of dipteran pests, while <i>Trichomalopsis ovigastra</i> Sureshan & Narendran (Hymenoptera: Pteromalidae) has been only morphologically described. To assess its biocontrol potential, we compared the biological traits of <i>T. ovigastra</i> and <i>P. vindemiae</i> using <i>Drosophila melanogaster</i> Meigen (Diptera: Drosophilidae) and <i>Bactrocera dorsalis</i> (Hendel) (Diptera: Tephritidae) as hosts. <i>T. ovigastra</i> showed significantly higher parasitism rates, especially against <i>B. dorsalis</i>, where <i>T. ovigastra</i> achieved nearly 50% parasitism, compared to less than 0.3% by <i>P. vindemiae</i>. When using <i>D. melanogaster</i> as the host, no significant differences were observed between <i>T. ovigastra</i> and <i>P. vindemiae</i> in offspring sex ratio or adult longevity; however, <i>T. ovigastra</i> exhibited a shorter developmental duration and greater tolerance to temperature extremes, starvation, and desiccation. Notably, <i>B. dorsalis</i> has expanded its range from southern to northern China; however, no native parasitoids of this pest have been reported in the newly invaded northern regions. <i>T. ovigastra</i>, collected from northern orchards and capable of parasitizing <i>B. dorsalis</i>, thus shows promise as a biocontrol agent. These findings highlight the potential of locally occurring parasitoids, although field validation is still required.https://www.mdpi.com/2075-4450/16/7/708biological control<i>Trichomalopsis ovigastra</i><i>Pachycrepoideus vindemiae</i><i>Drosophila melanogaster</i><i>Bactrocera dorsalis</i>
spellingShingle Ziwen Teng
Yiting Wang
Minghao Jiang
Yikun Zhang
Xintong Wang
Fanghao Wan
Hongxu Zhou
Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>
Insects
biological control
<i>Trichomalopsis ovigastra</i>
<i>Pachycrepoideus vindemiae</i>
<i>Drosophila melanogaster</i>
<i>Bactrocera dorsalis</i>
title Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>
title_full Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>
title_fullStr Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>
title_full_unstemmed Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>
title_short Evaluation of Pupal Parasitoids <i>Trichomalopsis ovigastra</i> and <i>Pachycrepoideus vindemiae</i> as Potential Biological Control Agents of <i>Bactrocera dorsalis</i>
title_sort evaluation of pupal parasitoids i trichomalopsis ovigastra i and i pachycrepoideus vindemiae i as potential biological control agents of i bactrocera dorsalis i
topic biological control
<i>Trichomalopsis ovigastra</i>
<i>Pachycrepoideus vindemiae</i>
<i>Drosophila melanogaster</i>
<i>Bactrocera dorsalis</i>
url https://www.mdpi.com/2075-4450/16/7/708
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