Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea Leafhoppers

Device structure, light source height, and climatic factors can potentially affect the catching of target pests in light traps. In this study, the installation of an anti-escape cover in a newly designed light trap significantly increased the number of catches of tea leafhoppers, <i>Empoasca o...

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Main Authors: Lei Bian, Huihua Ji, Xiaoming Cai, Guo Cheng, Xiaoqun Xie, Xiaofeng Duan, Zongmao Chen
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/13/2/241
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author Lei Bian
Huihua Ji
Xiaoming Cai
Guo Cheng
Xiaoqun Xie
Xiaofeng Duan
Zongmao Chen
author_facet Lei Bian
Huihua Ji
Xiaoming Cai
Guo Cheng
Xiaoqun Xie
Xiaofeng Duan
Zongmao Chen
author_sort Lei Bian
collection DOAJ
description Device structure, light source height, and climatic factors can potentially affect the catching of target pests in light traps. In this study, the installation of an anti-escape cover in a newly designed light trap significantly increased the number of catches of tea leafhoppers, <i>Empoasca onukii</i>, an economically significant pest of tea gardens, and it prevented 97.95% of leafhoppers from escaping. A series of assessments were performed in the field and showed that the optimal trapping window of the light trap was between 1.5 and 2.5 h (2 ± 0.35 h) after sunset, and the starting time of the window was positively correlated with the sunset time. The number of leafhopper catches decreased sharply when the height of the light source was above the flight height range of <i>E. onukii</i> adults. The height of the light source was optimal between 20 and 40 cm above the tea canopy. The efficacy of the light traps for capturing leafhoppers decreased in the autumn peak period. High numbers of leafhopper catches by the newly designed light trap in the summer could reduce <i>E. onukii</i> population sizes in the autumn. Overall, the newly designed light trap can be used to reduce <i>E. onukii</i> adult populations in tea gardens.
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spelling doaj.art-2caed2aaab674633af0aa9bde72c97612024-01-29T14:11:17ZengMDPI AGPlants2223-77472024-01-0113224110.3390/plants13020241Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea LeafhoppersLei Bian0Huihua Ji1Xiaoming Cai2Guo Cheng3Xiaoqun Xie4Xiaofeng Duan5Zongmao Chen6Key Laboratory of Biology, Genetics, and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Science, 9 Meiling South Road, Xihu District, Hangzhou 310008, ChinaCollege of Optics and Electronic Technology, China Jiliang University, 258 Xueyuan Road, Qiantang District, Hangzhou 310018, ChinaKey Laboratory of Biology, Genetics, and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Science, 9 Meiling South Road, Xihu District, Hangzhou 310008, ChinaCollege of Optics and Electronic Technology, China Jiliang University, 258 Xueyuan Road, Qiantang District, Hangzhou 310018, ChinaJiangxi Cash Crops Research Institute, 4 Fuzhou Branch Road, Donghu District, Nanchang 330203, ChinaCollege of Agriculture, Tongren Polytechnic College, 2 Ziyou Road, Bijiang District, Tongren 554300, ChinaKey Laboratory of Biology, Genetics, and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Science, 9 Meiling South Road, Xihu District, Hangzhou 310008, ChinaDevice structure, light source height, and climatic factors can potentially affect the catching of target pests in light traps. In this study, the installation of an anti-escape cover in a newly designed light trap significantly increased the number of catches of tea leafhoppers, <i>Empoasca onukii</i>, an economically significant pest of tea gardens, and it prevented 97.95% of leafhoppers from escaping. A series of assessments were performed in the field and showed that the optimal trapping window of the light trap was between 1.5 and 2.5 h (2 ± 0.35 h) after sunset, and the starting time of the window was positively correlated with the sunset time. The number of leafhopper catches decreased sharply when the height of the light source was above the flight height range of <i>E. onukii</i> adults. The height of the light source was optimal between 20 and 40 cm above the tea canopy. The efficacy of the light traps for capturing leafhoppers decreased in the autumn peak period. High numbers of leafhopper catches by the newly designed light trap in the summer could reduce <i>E. onukii</i> population sizes in the autumn. Overall, the newly designed light trap can be used to reduce <i>E. onukii</i> adult populations in tea gardens.https://www.mdpi.com/2223-7747/13/2/241light trapattract and kill<i>Empoasca onukii</i>trap designescape prevention
spellingShingle Lei Bian
Huihua Ji
Xiaoming Cai
Guo Cheng
Xiaoqun Xie
Xiaofeng Duan
Zongmao Chen
Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea Leafhoppers
Plants
light trap
attract and kill
<i>Empoasca onukii</i>
trap design
escape prevention
title Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea Leafhoppers
title_full Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea Leafhoppers
title_fullStr Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea Leafhoppers
title_full_unstemmed Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea Leafhoppers
title_short Device Structure, Light Source Height, and Sunset Time Affect the Light-Trap Catching of Tea Leafhoppers
title_sort device structure light source height and sunset time affect the light trap catching of tea leafhoppers
topic light trap
attract and kill
<i>Empoasca onukii</i>
trap design
escape prevention
url https://www.mdpi.com/2223-7747/13/2/241
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