Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>

<i>Sclerodermus sichuanensis</i>, a parasitic wasp, plays a significant role in wood-boring forest pest control in China. Research has shown that the photoperiod significantly affects the development and reproduction of parasitic wasps. However, the effects of the photoperiod on <i>...

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Main Authors: Kui Kang, Lina Wang, Zhongjiu Xiao, Shaobo Wang, Ke Wei, Xiaoyi Wang, Yanlong Zhang, Yanlong Tang
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/16/7/701
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author Kui Kang
Lina Wang
Zhongjiu Xiao
Shaobo Wang
Ke Wei
Xiaoyi Wang
Yanlong Zhang
Yanlong Tang
author_facet Kui Kang
Lina Wang
Zhongjiu Xiao
Shaobo Wang
Ke Wei
Xiaoyi Wang
Yanlong Zhang
Yanlong Tang
author_sort Kui Kang
collection DOAJ
description <i>Sclerodermus sichuanensis</i>, a parasitic wasp, plays a significant role in wood-boring forest pest control in China. Research has shown that the photoperiod significantly affects the development and reproduction of parasitic wasps. However, the effects of the photoperiod on <i>S. sichuanensis</i> have not yet been reported. This study investigates the impact of different photoperiods on the developmental duration and reproduction of <i>S. sichuanensis</i>. The wasps were reared under four photoperiod conditions: 0L:24D, 8L:16D, 16L:8D, and 24L:0D. The results show that increased light duration shortened the egg, larval, and pupal stages, with the total developmental period decreasing by up to 17 days. The number of offspring was highest in the 8L:16D and 16L:8D treatments, while constant light (24L:0D) led to a significant decrease in offspring numbers. The parasitism rate and pre-oviposition period were also affected by light exposure, with the longest pre-oviposition period observed in complete darkness. These findings indicate that the photoperiod plays a crucial role in regulating the development and reproductive efficiency of <i>S. sichuanensis</i>, suggesting that appropriate light conditions could enhance the efficiency of its use in pest control.
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spelling doaj-art-0ea1dd2425804a7480acbd7ef3f10b412025-08-20T03:32:27ZengMDPI AGInsects2075-44502025-07-0116770110.3390/insects16070701Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>Kui Kang0Lina Wang1Zhongjiu Xiao2Shaobo Wang3Ke Wei4Xiaoyi Wang5Yanlong Zhang6Yanlong Tang7College of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi 563002, ChinaCollege of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi 563002, ChinaCollege of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi 563002, ChinaCollege of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi 563002, ChinaKey Laboratory of Forest Protection of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, ChinaKey Laboratory of Forest Protection of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, ChinaKey Laboratory of Forest Protection of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, ChinaCollege of Biological and Agricultural Science and Technology, Zunyi Normal University, Zunyi 563002, China<i>Sclerodermus sichuanensis</i>, a parasitic wasp, plays a significant role in wood-boring forest pest control in China. Research has shown that the photoperiod significantly affects the development and reproduction of parasitic wasps. However, the effects of the photoperiod on <i>S. sichuanensis</i> have not yet been reported. This study investigates the impact of different photoperiods on the developmental duration and reproduction of <i>S. sichuanensis</i>. The wasps were reared under four photoperiod conditions: 0L:24D, 8L:16D, 16L:8D, and 24L:0D. The results show that increased light duration shortened the egg, larval, and pupal stages, with the total developmental period decreasing by up to 17 days. The number of offspring was highest in the 8L:16D and 16L:8D treatments, while constant light (24L:0D) led to a significant decrease in offspring numbers. The parasitism rate and pre-oviposition period were also affected by light exposure, with the longest pre-oviposition period observed in complete darkness. These findings indicate that the photoperiod plays a crucial role in regulating the development and reproductive efficiency of <i>S. sichuanensis</i>, suggesting that appropriate light conditions could enhance the efficiency of its use in pest control.https://www.mdpi.com/2075-4450/16/7/701<i>Sclerodermus sichuanensis</i>photoperioddevelopmentreproduction
spellingShingle Kui Kang
Lina Wang
Zhongjiu Xiao
Shaobo Wang
Ke Wei
Xiaoyi Wang
Yanlong Zhang
Yanlong Tang
Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>
Insects
<i>Sclerodermus sichuanensis</i>
photoperiod
development
reproduction
title Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>
title_full Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>
title_fullStr Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>
title_full_unstemmed Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>
title_short Effects of Photoperiod on the Developmental Duration and Reproduction of <i>Sclerodermus sichuanensis</i>
title_sort effects of photoperiod on the developmental duration and reproduction of i sclerodermus sichuanensis i
topic <i>Sclerodermus sichuanensis</i>
photoperiod
development
reproduction
url https://www.mdpi.com/2075-4450/16/7/701
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