Evaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analyses
Abstract Background Telenomus remus Nixon is an important egg parasitoid of Spodoptera spp. pests and, as such, has potential as a biological control agent. Spodoptera litura (Fabricius) is a significant pest of many economically important crops worldwide. This study was conducted to evaluate the de...
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CABI
2023-11-01
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| Series: | CABI Agriculture and Bioscience |
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| Online Access: | https://doi.org/10.1186/s43170-023-00188-w |
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| author | Zhen Shen Li-Hui Liu Lian-Sheng Zang Tie-Jun Deng Zhen-Bao Luo Jun-Yi Gao Liang-De Tang |
| author_facet | Zhen Shen Li-Hui Liu Lian-Sheng Zang Tie-Jun Deng Zhen-Bao Luo Jun-Yi Gao Liang-De Tang |
| author_sort | Zhen Shen |
| collection | DOAJ |
| description | Abstract Background Telenomus remus Nixon is an important egg parasitoid of Spodoptera spp. pests and, as such, has potential as a biological control agent. Spodoptera litura (Fabricius) is a significant pest of many economically important crops worldwide. This study was conducted to evaluate the demographic parameters and functional response of T. remus on the S. litura eggs. Results T. remus can lay 186.90 eggs/female in the lifetime, adult preoviposition period was 0 days, total preoviposition period was 10.03 days, and the ratio of female and male offspring was 0.495 and 0.421, respectively. In addition, most females emerged from 24 h-old eggs, whereas most males emerged from 48 h-old eggs. The intrinsic rate of increase, finite rate of increase, net reproductive rate, mean generation time, and population doubling time were 0.3506 d–1 1.4199 d–1 92.45 offspring/individua, 12.91 days and 1.98 days, respectively. The net killing rate of T. remus on S. litura was 101.49 eggs/female, indicating the high capacity of T. remus to parasitize S. litura eggs. Moreover, the higher the egg density, the higher the parasitism rate by female T. remus, although there was a trend of parasitism stabilization at an egg density of 100, indicating a type II functional response curve for this parasitoid. Conclusion Overall, these findings suggest that T. remus can be efficiently reared on S. litura eggs and shows potential as biocontrol agent for this economically important pest species. |
| format | Article |
| id | doaj-art-26cdc48050ed488ebc3d5c623c6aead7 |
| institution | Kabale University |
| issn | 2662-4044 |
| language | English |
| publishDate | 2023-11-01 |
| publisher | CABI |
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| series | CABI Agriculture and Bioscience |
| spelling | doaj-art-26cdc48050ed488ebc3d5c623c6aead72025-02-03T02:01:29ZengCABICABI Agriculture and Bioscience2662-40442023-11-014111210.1186/s43170-023-00188-wEvaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analysesZhen Shen0Li-Hui Liu1Lian-Sheng Zang2Tie-Jun Deng3Zhen-Bao Luo4Jun-Yi Gao5Liang-De Tang6National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou UniversityGuangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural SciencesNational Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou UniversityGuangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural SciencesBijie Tobacco Company of Guizhou ProvinceBijie Tobacco Company of Guizhou ProvinceNational Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou UniversityAbstract Background Telenomus remus Nixon is an important egg parasitoid of Spodoptera spp. pests and, as such, has potential as a biological control agent. Spodoptera litura (Fabricius) is a significant pest of many economically important crops worldwide. This study was conducted to evaluate the demographic parameters and functional response of T. remus on the S. litura eggs. Results T. remus can lay 186.90 eggs/female in the lifetime, adult preoviposition period was 0 days, total preoviposition period was 10.03 days, and the ratio of female and male offspring was 0.495 and 0.421, respectively. In addition, most females emerged from 24 h-old eggs, whereas most males emerged from 48 h-old eggs. The intrinsic rate of increase, finite rate of increase, net reproductive rate, mean generation time, and population doubling time were 0.3506 d–1 1.4199 d–1 92.45 offspring/individua, 12.91 days and 1.98 days, respectively. The net killing rate of T. remus on S. litura was 101.49 eggs/female, indicating the high capacity of T. remus to parasitize S. litura eggs. Moreover, the higher the egg density, the higher the parasitism rate by female T. remus, although there was a trend of parasitism stabilization at an egg density of 100, indicating a type II functional response curve for this parasitoid. Conclusion Overall, these findings suggest that T. remus can be efficiently reared on S. litura eggs and shows potential as biocontrol agent for this economically important pest species.https://doi.org/10.1186/s43170-023-00188-wBiological controlFunctional responseLife tableMass-rearingSpodoptera litura (Fabricius)Telenomus remus Nixon |
| spellingShingle | Zhen Shen Li-Hui Liu Lian-Sheng Zang Tie-Jun Deng Zhen-Bao Luo Jun-Yi Gao Liang-De Tang Evaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analyses CABI Agriculture and Bioscience Biological control Functional response Life table Mass-rearing Spodoptera litura (Fabricius) Telenomus remus Nixon |
| title | Evaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analyses |
| title_full | Evaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analyses |
| title_fullStr | Evaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analyses |
| title_full_unstemmed | Evaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analyses |
| title_short | Evaluation of Telenomus remus (Hymenoptera: Platygastridae) as a biocontrol agent of Spodoptera litura (Lepidoptera: Noctuidae) based on two-sex life table and functional response analyses |
| title_sort | evaluation of telenomus remus hymenoptera platygastridae as a biocontrol agent of spodoptera litura lepidoptera noctuidae based on two sex life table and functional response analyses |
| topic | Biological control Functional response Life table Mass-rearing Spodoptera litura (Fabricius) Telenomus remus Nixon |
| url | https://doi.org/10.1186/s43170-023-00188-w |
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