Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i>
Fall armyworm <i>Spodoptera frugiperda</i>, a native insect pest in tropical and subtropical America, has rapidly spread to most parts of China and become a major pest of corn and other crops since invading in early January 2019. As an emergency and important control measure, chemical co...
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MDPI AG
2022-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/22/3985 |
| _version_ | 1827643917907001344 |
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| author | Xue Li Qinying Wang Xiuping Wang Zhenying Wang |
| author_facet | Xue Li Qinying Wang Xiuping Wang Zhenying Wang |
| author_sort | Xue Li |
| collection | DOAJ |
| description | Fall armyworm <i>Spodoptera frugiperda</i>, a native insect pest in tropical and subtropical America, has rapidly spread to most parts of China and become a major pest of corn and other crops since invading in early January 2019. As an emergency and important control measure, chemical control of <i>S. frugiperda</i> has the advantages of quick effect and low cost. However, long-term and large-scale use of pesticides might pollute the environment and increase pest resistance. By improving the control effect and reducing the dosage of chemical pesticides, graphene oxide (GO) is used synergistically with insecticides to increase control efficacy to achieve low-cost and sustainable management of insect pests as a new type of synergist. In this study, graphene oxide was compounded with insecticides to form nanocomposites. To clarify pest physiological responses, the laboratory toxicity of graphene oxide-insecticide nanocomposites was measured on the larvae of <i>S. frugiperda</i>. The results demonstrated that GO could enhance the activity of four selected pesticides: chlorantraniliprole (Chl), beta cypermethrin (Bet), methoxyhydrazide (Met) and spinetoram (Spi). Compared with pesticides alone, the toxicity of Chl-GO, Bet-GO, Met-GO and Spi-GO mixtures to the third instar larvae of <i>S. frugiperda</i> increased by 1.56, 1.54, 2.53 and 1.74 times, respectively. The easy preparation and higher bioactivity of GO-pesticide nanocomposites indicated their promising application potential in pest control. |
| first_indexed | 2024-03-09T18:05:48Z |
| format | Article |
| id | doaj.art-3011242fefbf4bafb7c2dcf2e60530b3 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T18:05:48Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-3011242fefbf4bafb7c2dcf2e60530b32023-11-24T09:27:48ZengMDPI AGNanomaterials2079-49912022-11-011222398510.3390/nano12223985Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i>Xue Li0Qinying Wang1Xiuping Wang2Zhenying Wang3State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaPlant Protection College, Hebei Agricultural University, Baoding 071000, ChinaAnalysis and Testing Center, Hebei Normal University of Science and Technology, Qinhuangdao 066000, ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, ChinaFall armyworm <i>Spodoptera frugiperda</i>, a native insect pest in tropical and subtropical America, has rapidly spread to most parts of China and become a major pest of corn and other crops since invading in early January 2019. As an emergency and important control measure, chemical control of <i>S. frugiperda</i> has the advantages of quick effect and low cost. However, long-term and large-scale use of pesticides might pollute the environment and increase pest resistance. By improving the control effect and reducing the dosage of chemical pesticides, graphene oxide (GO) is used synergistically with insecticides to increase control efficacy to achieve low-cost and sustainable management of insect pests as a new type of synergist. In this study, graphene oxide was compounded with insecticides to form nanocomposites. To clarify pest physiological responses, the laboratory toxicity of graphene oxide-insecticide nanocomposites was measured on the larvae of <i>S. frugiperda</i>. The results demonstrated that GO could enhance the activity of four selected pesticides: chlorantraniliprole (Chl), beta cypermethrin (Bet), methoxyhydrazide (Met) and spinetoram (Spi). Compared with pesticides alone, the toxicity of Chl-GO, Bet-GO, Met-GO and Spi-GO mixtures to the third instar larvae of <i>S. frugiperda</i> increased by 1.56, 1.54, 2.53 and 1.74 times, respectively. The easy preparation and higher bioactivity of GO-pesticide nanocomposites indicated their promising application potential in pest control.https://www.mdpi.com/2079-4991/12/22/3985graphene oxidepesticide<i>Spodoptera frugiperda</i>toxicitysynergistic effect |
| spellingShingle | Xue Li Qinying Wang Xiuping Wang Zhenying Wang Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i> Nanomaterials graphene oxide pesticide <i>Spodoptera frugiperda</i> toxicity synergistic effect |
| title | Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i> |
| title_full | Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i> |
| title_fullStr | Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i> |
| title_full_unstemmed | Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i> |
| title_short | Synergistic Effects of Graphene Oxide and Pesticides on Fall Armyworm, <i>Spodoptera frugiperda</i> |
| title_sort | synergistic effects of graphene oxide and pesticides on fall armyworm i spodoptera frugiperda i |
| topic | graphene oxide pesticide <i>Spodoptera frugiperda</i> toxicity synergistic effect |
| url | https://www.mdpi.com/2079-4991/12/22/3985 |
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