| 花椒吉丁啮小蜂生物学特性初步研究 |
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| 引用本文： | 张伟,李孟楼.花椒吉丁啮小蜂生物学特性初步研究[J].西北林学院学报,2010,25(1):107-110. |
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| 作者姓名： | 张伟 李孟楼 |
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| 作者单位： | 西北农林科技大学林学院; |
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| 基金项目： | 国家"十一五"林业科技支撑计划 |
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| 摘 要： | 在实验室条件下,对花椒吉丁啮小蜂的生物学特性进行了初步研究。结果表明,其平均自然寄生率为16.2%,最高可达44.4%;花椒吉丁啮小蜂幼虫死亡率35.96%,化蛹率64.04%,羽化率40.85%,雌雄性比为1.4∶1.0;化蛹历期12 d,羽化历期15 d;每头寄主幼虫体内的花椒吉丁啮小蜂数为1～32头、平均11.6头,寄生率随海拔的升高而降低;成虫的寿命受光照和食物的影响,光照周期为L D8∶16时寿命达21.3 d,L D0∶24时仅7.9 d,以20%蜂蜜水和清水饲喂及空白对照的寿命分别为20.3、4.7和4.0 d。花椒吉丁啮小蜂是控制花椒窄吉丁幼虫的主要天敌,有进行人工繁殖和利用的价值。
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| 关 键 词： | 花椒吉丁啮小蜂 生物学特性 发育历程 寄生率 成虫寿命 |
Preliminary Study of the Biological Characteristics of Tetrastichus zanthoxylumii |
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| ZHANG Wei,LI Meng-lou.Preliminary Study of the Biological Characteristics of Tetrastichus zanthoxylumii[J].Journal of Northwest Forestry University,2010,25(1):107-110. |
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| Authors: | ZHANG Wei LI Meng-lou |
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| Institution: | ZHANG Wei,LI Meng-lou(College of Forestry,Northwest A&F University,Yangling,Shaanxi 712100,China) |
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| Abstract: | Biological character of Tetrastichus zanthoxylumii was preliminarily studied under laboratory conditions. The results showed that the average natural parasitization was 16.2%, with the highest being 44.4%. The larvae death rate, pupation rate, emergence rate and sex ratio were 35.96%, 64.04%, 40.85% and 1.4:1.0 respectively. The pupation and emergency process lasted 12 d and 15 d. The number of T. zanthoxylumii in each host larvae varied from 1 to 32, with a mean of 11.6. The parasitization decreased as the altitudes increased. Affected by light and food, the longevity of adults was 21.3 and 7.9 d at 8:16 and 0:24 L:D cycle, and 20.3, 4.7, 4.0 d fed with 20% honey, water and ck respectively. T. zanthoxylumii is the dominant natural enemy of Agrilus zanthoxylumi and has value of manual reproduction and utilization. |
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| Keywords: | Tetrastichus zanthoxylumii biological characteristics developmental process parasitization longevity of adults |
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