Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China
Fall armyworm, Spodoptera frugiperda (J. E. Smith, 1797), a crop pest native to tropical and subtropical regions of America, has invaded and spread into most regions in China, posing a severe threat to China's agriculture. The cold hardiness directly determines its geographic distribution throu...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-03-01
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| Series: | Journal of Integrative Agriculture |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311920632889 |
| _version_ | 1818437977028689920 |
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| author | Dan-dan ZHANG Sheng-yuan ZHAO Qiu-lin WU Yu-yan LI Kong-ming WU |
| author_facet | Dan-dan ZHANG Sheng-yuan ZHAO Qiu-lin WU Yu-yan LI Kong-ming WU |
| author_sort | Dan-dan ZHANG |
| collection | DOAJ |
| description | Fall armyworm, Spodoptera frugiperda (J. E. Smith, 1797), a crop pest native to tropical and subtropical regions of America, has invaded and spread into most regions in China, posing a severe threat to China's agriculture. The cold hardiness directly determines its geographic distribution through adapting to winter temperatures of different regions. Here, we measured supercooling points and lethal time (LT) at low temperatures of S. frugiperda. The supercooling points for developmental stages in increasing order were: adults (−15.05°C)<pupae (−13.25°C)<prepupae (−10.50°C)<larvae (−9.03°C). Among eggs and 1st to 4th instar larvae, the 99% lethal time (LT99) was the highest for 4th instar larvae, with 99% of larvae dying after 18.59 d at 2°C, 58.72 d at 7°C, and 66.28 d at 13°C. LT99 was the lowest for eggs with LT99 of 5.33 d at 2°C, 9.28 d at 7°C, and 12.97 d at 13°C. This study provides an understanding of overwintering regions of S. frugiperda in China, which will be helpful for population forecasting and management. |
| first_indexed | 2024-12-14T17:33:14Z |
| format | Article |
| id | doaj.art-d5d37a201f51488880c3a0a212dbb853 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-14T17:33:14Z |
| publishDate | 2021-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-d5d37a201f51488880c3a0a212dbb8532022-12-21T22:53:04ZengElsevierJournal of Integrative Agriculture2095-31192021-03-01203764771Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in ChinaDan-dan ZHANG0Sheng-yuan ZHAO1Qiu-lin WU2Yu-yan LI3Kong-ming WU4ZHANG Dan-dan, Tel: +86-10-62816306; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaState Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaCorrespondence WU Kong-ming, Tel: +86-10-82105551; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.ChinaFall armyworm, Spodoptera frugiperda (J. E. Smith, 1797), a crop pest native to tropical and subtropical regions of America, has invaded and spread into most regions in China, posing a severe threat to China's agriculture. The cold hardiness directly determines its geographic distribution through adapting to winter temperatures of different regions. Here, we measured supercooling points and lethal time (LT) at low temperatures of S. frugiperda. The supercooling points for developmental stages in increasing order were: adults (−15.05°C)<pupae (−13.25°C)<prepupae (−10.50°C)<larvae (−9.03°C). Among eggs and 1st to 4th instar larvae, the 99% lethal time (LT99) was the highest for 4th instar larvae, with 99% of larvae dying after 18.59 d at 2°C, 58.72 d at 7°C, and 66.28 d at 13°C. LT99 was the lowest for eggs with LT99 of 5.33 d at 2°C, 9.28 d at 7°C, and 12.97 d at 13°C. This study provides an understanding of overwintering regions of S. frugiperda in China, which will be helpful for population forecasting and management.http://www.sciencedirect.com/science/article/pii/S2095311920632889Spodoptera frugiperdasupercooling pointoverwinterChina |
| spellingShingle | Dan-dan ZHANG Sheng-yuan ZHAO Qiu-lin WU Yu-yan LI Kong-ming WU Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China Journal of Integrative Agriculture Spodoptera frugiperda supercooling point overwinter China |
| title | Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China |
| title_full | Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China |
| title_fullStr | Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China |
| title_full_unstemmed | Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China |
| title_short | Cold hardiness of the invasive fall armyworm, Spodoptera frugiperda in China |
| title_sort | cold hardiness of the invasive fall armyworm spodoptera frugiperda in china |
| topic | Spodoptera frugiperda supercooling point overwinter China |
| url | http://www.sciencedirect.com/science/article/pii/S2095311920632889 |
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