| 苜蓿叶象啮小蜂生物学特性的初步研究 |
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| 引用本文： | 朱晓锋,赵莉,美丽开.苜蓿叶象啮小蜂生物学特性的初步研究[J].新疆农业大学学报,2006,29(1):19-23. |
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| 作者姓名： | 朱晓锋 赵莉 美丽开 |
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| 作者单位： | 新疆农业大学,农学院,新疆草地资源与生态实验室,乌鲁木齐,830052 |
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| 基金项目： | 新疆区科技重点项目;新疆现代化畜牧业试验示范项目办资助项目;新疆科技攻关项目 |
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| 摘 要： | 苜蓿叶象啮小蜂Tetrastichus incertus（Ratzeburg）是苜蓿叶象甲Hypera postica（Gyllenhal）幼虫的一种内寄生性天敌。对苜蓿叶象啮小蜂的形态特征、发育、羽化、交配、产卵的行为学特性及其越冬做丁初步研究。结果表明：苜蓿叶象啮小蜂处于3龄时，其被寄生寄主已死亡；田间单个被寄生寄主羽化出蜂范围为1～14头，平均为7．43头；成蜂羽化高峰期为8：00～12：00，其羽化量约占83．33％；苜蓿叶象啮小蜂以老熟幼虫在寄主体内越冬；初春，实验室、田间已越冬的苜蓿叶象啮小蜂的羽化率分别为83．9％，40．4％。
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| 关 键 词： | 苜蓿叶象啮小蜂 形态特征 行为学特性 越冬 发育 |
| 文章编号： | 1007-8614(2006)01-0019-05 |
| 修稿时间： | 2005年12月30 |
Preliminary Study on Biological Characters of Tetrastichus incertus (Ratzeburg), a Parasite of the Alfalfa Weevi |
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| ZHU Xiao-feng,ZHAO Li,Meilikai.Preliminary Study on Biological Characters of Tetrastichus incertus (Ratzeburg), a Parasite of the Alfalfa Weevi[J].Journal of Xinjiang Agricultural University,2006,29(1):19-23. |
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| Authors: | ZHU Xiao-feng ZHAO Li Meilikai |
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| Abstract: | Tetrastichus incertus(Ratzeburg) is a endoparasite of larvae of the alfalfa weevil,Hypera postica(Gyllenhal).The preliminarily study was made on the characters of morphology,development,eclosion,mating,oviposition and overwintering of T.incertus.The results demostrated that when the larvae of T.incertus were the 3rd instar,their hosts parasitized had already died,adult emergence was ranged from 1 to 14 host,average was 7.43,eclosion percentage was about 83.33%;peak-hour of adult eclosion was 8~12 o'clock,in addition to T.incertus overwinters as mature larvae within host.In early spring the emergence rates of adult overwintered in laboratory and in field were 83.9% and 40.4% respectively. |
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| Keywords: | Tetrastichus incertus morphological character ethological character overwintering development |
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