Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India
Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) has significantly affected maize crop yields, production efficiency, and farmers’ incomes in the Indian Eastern Gangetic Plains region since it was first observed in India in 2018. A lack of awareness by maize growers of the appropriate selecti...
| Autores principales: | , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Nature Publishing Group
2024
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| Acceso en línea: | https://hdl.handle.net/10568/155423 |
| _version_ | 1855529158921158656 |
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| author | Subhajit Pal Bhattacharya, Swarnali Dhar, Tapamay Gupta, Ankita Ghosh, Arunava Debnath, Sandip Gangavarapu, Nikhitha Pati, Prajna Chaudhuri, Nilanjana Chatterjee, Hirak Sabita Kumar Senapati Bhattacharya, Prateek Madhab Gathala, Mahesh Kumar Laing, Alison M. |
| author_browse | Bhattacharya, Prateek Madhab Bhattacharya, Swarnali Chatterjee, Hirak Chaudhuri, Nilanjana Debnath, Sandip Dhar, Tapamay Gangavarapu, Nikhitha Gathala, Mahesh Kumar Ghosh, Arunava Gupta, Ankita Laing, Alison M. Pati, Prajna Sabita Kumar Senapati Subhajit Pal |
| author_facet | Subhajit Pal Bhattacharya, Swarnali Dhar, Tapamay Gupta, Ankita Ghosh, Arunava Debnath, Sandip Gangavarapu, Nikhitha Pati, Prajna Chaudhuri, Nilanjana Chatterjee, Hirak Sabita Kumar Senapati Bhattacharya, Prateek Madhab Gathala, Mahesh Kumar Laing, Alison M. |
| author_sort | Subhajit Pal |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) has significantly affected maize crop yields, production efficiency, and farmers’ incomes in the Indian Eastern Gangetic Plains region since it was first observed in India in 2018. A lack of awareness by maize growers of the appropriate selection, method, and timing of insecticide application not only creates a barrier to sustainable FAW control but also contributes to increased environmental pollution, reduced human health and increased production costs. We demonstrated that FAW inflicted the most damage in early whorl growth stage of maize, regardless of whether chemical insecticides were applied. FAW egg masses and larvae collected from maize fields in which no insecticides had been sprayed showed high parasitism rates by parasitoid wasps; in contrast fields that had been sprayed had much lower rates of parasitism on FAW. Ten hymenopteran parasitoids were observed in maize fields across the study region, suggesting a diversity of natural methods to suppress FAW in maize at different growth stages. These included two FAW egg parasitoids and eight FAW larval parasitoids. Microplitis manilae Ashmead was the most abundant FAW larval parasitoid species, and Telenomus cf. remus was the dominant FAW egg parasitoid species. Endemic FAW parasitoids such as those observed in this study have great potential as part of a sustainable, cost-effective agroecological management strategy, which can be integrated with other methods to achieve effective control of FAW. |
| format | Journal Article |
| id | CGSpace155423 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Nature Publishing Group |
| publisherStr | Nature Publishing Group |
| record_format | dspace |
| spelling | CGSpace1554232025-12-08T09:54:28Z Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India Subhajit Pal Bhattacharya, Swarnali Dhar, Tapamay Gupta, Ankita Ghosh, Arunava Debnath, Sandip Gangavarapu, Nikhitha Pati, Prajna Chaudhuri, Nilanjana Chatterjee, Hirak Sabita Kumar Senapati Bhattacharya, Prateek Madhab Gathala, Mahesh Kumar Laing, Alison M. fall armyworms maize insecticides insect control Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) has significantly affected maize crop yields, production efficiency, and farmers’ incomes in the Indian Eastern Gangetic Plains region since it was first observed in India in 2018. A lack of awareness by maize growers of the appropriate selection, method, and timing of insecticide application not only creates a barrier to sustainable FAW control but also contributes to increased environmental pollution, reduced human health and increased production costs. We demonstrated that FAW inflicted the most damage in early whorl growth stage of maize, regardless of whether chemical insecticides were applied. FAW egg masses and larvae collected from maize fields in which no insecticides had been sprayed showed high parasitism rates by parasitoid wasps; in contrast fields that had been sprayed had much lower rates of parasitism on FAW. Ten hymenopteran parasitoids were observed in maize fields across the study region, suggesting a diversity of natural methods to suppress FAW in maize at different growth stages. These included two FAW egg parasitoids and eight FAW larval parasitoids. Microplitis manilae Ashmead was the most abundant FAW larval parasitoid species, and Telenomus cf. remus was the dominant FAW egg parasitoid species. Endemic FAW parasitoids such as those observed in this study have great potential as part of a sustainable, cost-effective agroecological management strategy, which can be integrated with other methods to achieve effective control of FAW. 2024-02 2024-10-18T21:32:15Z 2024-10-18T21:32:15Z Journal Article https://hdl.handle.net/10568/155423 en Open Access application/pdf Nature Publishing Group Pal, S., Bhattacharya, S., Dhar, T., Gupta, A., Ghosh, A., Debnath, S., Gangavarapu, N., Pati, P., Chaudhuri, N., Chatterjee, H., Senapati, S. K., Bhattacharya, P. M., Gathala, M. K., & Laing, A. M. (2024). Hymenopteran parasitoid complex and fall armyworm: A case study in eastern India. Scientific Reports, 14(1), 4029. https://doi.org/10.1038/s41598-024-54342-z |
| spellingShingle | fall armyworms maize insecticides insect control Subhajit Pal Bhattacharya, Swarnali Dhar, Tapamay Gupta, Ankita Ghosh, Arunava Debnath, Sandip Gangavarapu, Nikhitha Pati, Prajna Chaudhuri, Nilanjana Chatterjee, Hirak Sabita Kumar Senapati Bhattacharya, Prateek Madhab Gathala, Mahesh Kumar Laing, Alison M. Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India |
| title | Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India |
| title_full | Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India |
| title_fullStr | Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India |
| title_full_unstemmed | Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India |
| title_short | Hymenopteran parasitoid complex and fall armyworm: a case study in eastern India |
| title_sort | hymenopteran parasitoid complex and fall armyworm a case study in eastern india |
| topic | fall armyworms maize insecticides insect control |
| url | https://hdl.handle.net/10568/155423 |
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