Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosus
Abstract The invasive phytophagous lace bug, Corythucha marmorata, threatens the functional food crop Helianthus tuberosus, but its overwintering ecology on this plant is poorly understood. This study evaluated the cold hardiness of C. marmorata at various life stages, focusing on the differences be...
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Nature Portfolio
2025-04-01
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| Online Access: | https://doi.org/10.1038/s41598-025-95657-9 |
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| author | Wei Zhou Meng-Shuang Yao Chang-Hao Lu Hao-Jun Li Wen-Long Chen |
| author_facet | Wei Zhou Meng-Shuang Yao Chang-Hao Lu Hao-Jun Li Wen-Long Chen |
| author_sort | Wei Zhou |
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| description | Abstract The invasive phytophagous lace bug, Corythucha marmorata, threatens the functional food crop Helianthus tuberosus, but its overwintering ecology on this plant is poorly understood. This study evaluated the cold hardiness of C. marmorata at various life stages, focusing on the differences between female and male adults. C. marmorata overwinter as adults on H. tuberosus, based on a four-year winter field investigation. The supercooling and equilibrium freezing points of C. marmorata decline with development. Female adults showed the greatest supercooling capacity. The lower lethal temperature (female − 15 °C, male − 16 °C) is above the supercooling point (− 26 °C). The low temperature exposure mortality of C. marmorata female and male adults exhibited different regularities. We conclude that C. marmorata belongs to chill susceptible insects. October to February is the most recommended period for C. marmorata control by harvesting H. tuberosus. Weed removal, such as Erigeron bonariensis, Erigeron canadensis, and Ambrosia trifida, is an early control measure. These results enhance our understanding of C. marmorata’s cold tolerance and inform targeted pest management strategies for H. tuberosus crops. |
| format | Article |
| id | doaj-art-d13af0cbccec4110b9e0e446351eb215 |
| institution | DOAJ |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-d13af0cbccec4110b9e0e446351eb2152025-08-20T03:07:40ZengNature PortfolioScientific Reports2045-23222025-04-0115111110.1038/s41598-025-95657-9Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosusWei Zhou0Meng-Shuang Yao1Chang-Hao Lu2Hao-Jun Li3Wen-Long Chen4Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experimental Station of Crop Pest in Guiyang of Ministry of Agricultural and Rural Affairs, Institute of Entomology of Guizhou UniversityGuizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experimental Station of Crop Pest in Guiyang of Ministry of Agricultural and Rural Affairs, Institute of Entomology of Guizhou UniversityGuizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experimental Station of Crop Pest in Guiyang of Ministry of Agricultural and Rural Affairs, Institute of Entomology of Guizhou UniversityGuizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experimental Station of Crop Pest in Guiyang of Ministry of Agricultural and Rural Affairs, Institute of Entomology of Guizhou UniversityGuizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region, Scientific Observing and Experimental Station of Crop Pest in Guiyang of Ministry of Agricultural and Rural Affairs, Institute of Entomology of Guizhou UniversityAbstract The invasive phytophagous lace bug, Corythucha marmorata, threatens the functional food crop Helianthus tuberosus, but its overwintering ecology on this plant is poorly understood. This study evaluated the cold hardiness of C. marmorata at various life stages, focusing on the differences between female and male adults. C. marmorata overwinter as adults on H. tuberosus, based on a four-year winter field investigation. The supercooling and equilibrium freezing points of C. marmorata decline with development. Female adults showed the greatest supercooling capacity. The lower lethal temperature (female − 15 °C, male − 16 °C) is above the supercooling point (− 26 °C). The low temperature exposure mortality of C. marmorata female and male adults exhibited different regularities. We conclude that C. marmorata belongs to chill susceptible insects. October to February is the most recommended period for C. marmorata control by harvesting H. tuberosus. Weed removal, such as Erigeron bonariensis, Erigeron canadensis, and Ambrosia trifida, is an early control measure. These results enhance our understanding of C. marmorata’s cold tolerance and inform targeted pest management strategies for H. tuberosus crops.https://doi.org/10.1038/s41598-025-95657-9Invasive speciesCorythucha marmorataAdultCold toleranceHelianthus tuberosus |
| spellingShingle | Wei Zhou Meng-Shuang Yao Chang-Hao Lu Hao-Jun Li Wen-Long Chen Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosus Scientific Reports Invasive species Corythucha marmorata Adult Cold tolerance Helianthus tuberosus |
| title | Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosus |
| title_full | Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosus |
| title_fullStr | Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosus |
| title_full_unstemmed | Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosus |
| title_short | Cold hardiness of Corythucha marmorata (Hemiptera: Tingidae) on the functional crop Helianthus tuberosus |
| title_sort | cold hardiness of corythucha marmorata hemiptera tingidae on the functional crop helianthus tuberosus |
| topic | Invasive species Corythucha marmorata Adult Cold tolerance Helianthus tuberosus |
| url | https://doi.org/10.1038/s41598-025-95657-9 |
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