| 黄琳瑞;王成菊;蒋家珍;李学锋;郑明奇;张文吉;邱立红.虫酰肼对甜菜夜蛾生物活性研究[J].植物保护,2006,32(2):48-52. |
| 虫酰肼对甜菜夜蛾生物活性研究 |
| Studies on the bioactivity of tebufenozide to beet armyworm,Spodoptera exigua(Hübner) |
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| DOI： |
| 中文关键词: 虫酰肼(RH-5992) 甜菜夜蛾 生物活性 |
| 英文关键词:tebufenozide(RH-5992) Spodoptera exigua bioactivity |
| 基金项目: |
| 黄琳瑞;王成菊;蒋家珍;李学锋;郑明奇;张文吉;邱立红 |
| 农业部农药化学与应用技术重点开放实验室 中国农业大学理学院 北京100094 |
| 摘要点击次数: 864 |
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| 中文摘要: |
| 测定了虫酰肼(RH-5992)对甜菜夜蛾的生物活性。杀卵作用测定表明,在200 mg/L浓度下,虫酰肼对甜菜夜蛾1日龄卵有较强的毒杀作用;用浸叶法测定了虫酰肼对甜菜夜蛾不同龄期幼虫的生物活性,发现1、2龄幼虫对药剂的敏感性较高,3~5龄幼虫敏感性下降但之间差异不大;拒食活性测定表明虫酰肼能明显抑制甜菜夜蛾幼虫的生长,降低其取食量,在10 mg/kg浓度时,表现了较强的拒食活性,96 h后拒食率达到73%以上。研究了虫酰肼对甜菜夜蛾生长发育的影响,发现其可延缓甜菜夜蛾的生长,使幼虫历期、蛹历期增长,同时降低甜菜夜蛾的生育繁殖能力,使幼虫成活率、化蛹率、羽化率、卵孵化率都有所下降。 |
| 英文摘要: |
| The bioactivity of tebufenozide(RH-5992) and its effects on Spodoptera exigua were investigated.The results showed that tebufenozide displayed high ovicidal activity on 1-day eggs of S.exigua at the concentration of 200mg/L.Leaf-dip tests showed that the 1st and 2nd instar larvae of S.exigua were more sensitive to tebufenozide than the 3rd,4th and 5th instar larvae.Tebufenozide could disrupt the growth and development of S.exigua.After treated with tebufenozide in diets,the larval period was elongated and the fecundity of S.exigua was decreased and the ratios of survival,pupation,emergence and hatch of the larvae were also decreased. |
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