| 温度对莲草直胸跳甲成虫繁殖特性和卵孵化的影响 |
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| 引用本文： | 傅建炜,郭建英,李赞斌,史梦竹,李建宇,万方浩.温度对莲草直胸跳甲成虫繁殖特性和卵孵化的影响[J].华东昆虫学报,2011(2):119-123. |
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| 作者姓名： | 傅建炜 郭建英 李赞斌 史梦竹 李建宇 万方浩 |
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| 作者单位： | 福建省农业科学院植物保护研究所;中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室;河北科技师范学院生命科技学院; |
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| 基金项目： | 国家“973”计划项目(2009CB119206); 国家“十一五”科技支撑计划课题(2006BAD08A18) |
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| 摘 要： | 莲草直胸跳甲是恶性入侵杂草喜旱莲子草的有效天敌。为探明莲草直胸跳甲成虫繁育的适宜温度条件和卵的低温冷藏适期,本文研究了莲草直胸跳甲成虫在25、27、30、32、35℃下的存活、取食和产卵特性及卵在15℃下冷藏不同时期的孵化率。结果表明:在25～35℃,莲草直胸跳甲成虫的生存曲线差异显著;随着温度的升高,雌雄成虫寿命呈缩短趋势,表现为25℃>32℃>35℃;但27和30℃的生存曲线与25和32℃差异均不显著。温度对莲草直胸跳甲成虫的取食量和产卵量均有显著影响,在25～35℃,随着温度的升高,跳甲的取食量和产卵量呈下降趋势;成虫期取食量、日均产卵量和世代产卵量表现为25℃>27℃、30℃>32℃>35℃;成虫期取食量和世代产卵量呈显著正相关,相关系数为0.960。将莲草直胸跳甲卵在15℃下冷藏1～10d后转移至25℃,其孵化率均可达100%,但孵化进度则有差异,孵化高峰期随着冷藏时间的延长而提前。与未经冷藏的卵(对照)相比,在15℃下冷藏1d,莲草直胸跳甲卵的始孵化日提前1d,但高峰期不变,均在第5天;在15℃下冷藏4、7和10d后,其孵化高峰期分别较对照提前1、2和3d。可见,在25～35℃时,25℃是莲草直胸...
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| 关 键 词： | 莲草直胸跳甲 喜旱莲子草 取食量 产卵量 死亡率 孵化率 |
Effects of temperature on the reproduction and egg hatching of Agasicles hygrophila (Coleoptera: Chrysomelidae), a biological control agent of the invasive alligator weed |
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| Jian-wei FU,Jian-ying GUO,Zan-bin LI,Meng-zhu SHI,Jian-yu LI,Fang-hao WAN Institute of Plant Protection,Fujian Academy of Agricultural Science,Fuzhou,Fujian ,China,State Key Laboratory for Biology of Plant Diseases , Insect Pests.Effects of temperature on the reproduction and egg hatching of Agasicles hygrophila (Coleoptera: Chrysomelidae), a biological control agent of the invasive alligator weed[J].Entomological Journal of East China,2011(2):119-123. |
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| Authors: | Jian-wei FU Jian-ying GUO Zan-bin LI Meng-zhu SHI Jian-yu LI Fang-hao WAN Institute of Plant Protection Fujian Academy of Agricultural Science Fuzhou Fujian China State Key Laboratory for Biology of Plant Diseases Insect Pests |
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| Institution: | Jian-wei FU1,2,Jian-ying GUO2,Zan-bin LI3,Meng-zhu SHI1,Jian-yu LI1,Fang-hao WAN2 1Institute of Plant Protection,Fujian Academy of Agricultural Science,Fuzhou,Fujian 350013,China,2State Key Laboratory for Biology of Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Science,Beijing 100193,3College of Life Science and Technology,Hebei Normal University of Science & Technology,Qinhuangdao,Hebei 066004 |
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| Abstract: | The flea beetle, Agasicles hygrophila Selman and Vogt, is an effective biological control agent of the alligator weed, Alternanthera philoxeroides （Mart.） Griseb.. To investigate the optimal temperature for the reproduction of A.hygrophila adults and the optimal duration of low temperature preservation of A.hygrophila eggs, we compared the survival, leaf consumption and fecundity of A.hygrophila adults under verying temperature regimes （25~35 ℃） as well as egg hatching rate following various durations of exposure to 15 ℃. The survival and longevity of A.hygrophila decreased with the increasing temperature, although the survivorship at 27 ℃ and 30 ℃ did not differ significantly to that at 25 ℃ and 32 ℃, respectively. Leaf consumption and fecundity of A.hygrophila adults decreased significantly with increasing temperature from 25 ℃ to 35 ℃. Leaf consumption per pair during their adult stage, average daily fecundity, fecundity per pair during their adult stage ranked as 25 ℃27 ℃, 30 ℃ 32 ℃ 35 ℃. There was a significant positive correlation between leaf consumption and adult fecundity. Storing unhatched eggs at 15 ℃ for up to 10 days did not decrease their viability. Compared with the untreated eggs, A.hygrophila eggs started to hatch one day earlier after treated at 15 ℃ for 1 d, with a peak on the fifth day. These results indicated that 25 ℃ was an optimal temperature for the survival, leaf consumption and fecundity of A.hygrophila adults, while 35 ℃ was the most unsuitable temperature. |
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| Keywords: | Agasicles hygrophila Alternanthera philoxeroides feeding amount fecundity mortality egg hatching rate |
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