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Light dependency of life trails, reproduction, locomotion, and predation in the polyphagous ladybird Hippodamia variegata

文献类型： 外文期刊

作者： Tan, Xiaoling 1 ; Zhao, Jing 1 ; Zhang, Fan 1 ; Wang, Su 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China

2.Northwest A&F Univ, Coll Plant Protect, Yangling 712100, Shaanxi, Peoples R China

3.Inst Weifang Sci & Technol, Coll Plant Protect, Shouguang 262700, Shandong, Peoples R China

关键词： photoperiod;light intensity;light wavelength;color conditions;Coleoptera;Coccinellidae

期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA （ 影响因子：2.25； 五年影响因子：2.184 ）

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收录情况： SCI

摘要： Light is regarded a key environmental cue influencing biological, physiological, and behavioral characteristics in insects. We compared the development, reproduction, locomotion, and predation ability of the predatory ladybird Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae) under various photoperiods, light intensities, and light wavelengths. The results indicated long daylight, high light intensity, and particular colors light (blue, green, and yellow) could benefit H. variegata especially in shortening the period of immature development, increasing mating frequency (shorter mating and pre-oviposition periods), higher fecundity, and a higher proportion of eggs hatched. Average locomotion speed and prey consumption rate of H. variegata increased with prolonged day length and increased light intensity. However, very high intensity of light could inhibit predation rates. Furthermore, green and yellow wavelength conditions increased locomotion speed of H. variegata, and the number of prey consumed increased with increased wavelength. The present study not only revealed significant influences of light conditions on the development and fertility of H. variegata, it also provided sufficient empirical data to improve the efficiency of mass rearing and field releases of this predatory ladybird by regulation of light conditions during biological control applications

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