| 冯惠玲;黄彰欣.不同温度下抑食肼对小菜蛾幼虫的药效试验[J].植物保护,1997,23(5):10-12. |
| 不同温度下抑食肼对小菜蛾幼虫的药效试验 |
| Effects of RH-5849 Against Larvae of Diamondback Moth Under Different Temperatures. |
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| DOI： |
| 中文关键词: 抑食肼,抑太保,小菜蛾,药效 |
| 英文关键词:RH 5849, IKI 7899, Plutella xylostella L. bioassay |
| 基金项目: |
| 冯惠玲;黄彰欣 |
| 深圳仙湖植物园 518004;华南农业大学植保系 |
| 摘要点击次数: 703 |
| 全文下载次数: 650 |
| 中文摘要: |
| 利用人工气候箱，在设定的５种温度条件下，用叶片残留法测定了抑食肼（４００ｍｇ／Ｌ）及抑太保（５０ｍｇ／Ｌ）对小菜蛾２龄幼虫的药效。研究结果表明，抑食肼及抑太保对小菜蛾２龄幼虫表现为正温度系数药剂。抑食肼在高温（３３℃）时对小菜蛾幼虫的校正死亡率为８７．５０％，远高于低温（１７℃）时的结果（校正死亡率为２８．７７％）。抑太保在２５～３３℃之间药效差异不明显，校正死亡率在８７．５０％以上。 |
| 英文摘要: |
| At five different constant temperatures,17,21,25,29 and 33℃, the effect of RH 5849 and IKI 7899 on 2nd instar larvae of diamondback moth was studied with leaf toxic residue method. The results showed that at temparature >29℃ with RH 5849 was more effcetive tham at <25℃, while at >25℃ treated with IKI 7899 was more effective than at <21℃. |
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