庾琴, 秦曙, 王霞, 乔雄梧. 温度、光照及生物因子对啶虫脒和吡虫啉在 油菜叶面消解的影响[J]. 农药学学报, 2006, 8(2): 147-151.
    引用本文: 庾琴, 秦曙, 王霞, 乔雄梧. 温度、光照及生物因子对啶虫脒和吡虫啉在 油菜叶面消解的影响[J]. 农药学学报, 2006, 8(2): 147-151.
    YU Qin, QIN Shu, WANG Xia, QIAO Xiong-wu. Dissipation of Acetamiprid and Imidacloprid Under Different Temperature, Light and Biological Factors on Phyllosphere of Brassica chinensis[J]. Chinese Journal of Pesticide Science, 2006, 8(2): 147-151.
    Citation: YU Qin, QIN Shu, WANG Xia, QIAO Xiong-wu. Dissipation of Acetamiprid and Imidacloprid Under Different Temperature, Light and Biological Factors on Phyllosphere of Brassica chinensis[J]. Chinese Journal of Pesticide Science, 2006, 8(2): 147-151.

    温度、光照及生物因子对啶虫脒和吡虫啉在 油菜叶面消解的影响

    Dissipation of Acetamiprid and Imidacloprid Under Different Temperature, Light and Biological Factors on Phyllosphere of Brassica chinensis

    • 摘要: 采用室内模拟方法研究了啶虫脒、吡虫啉在温度、光照和生物因子作用下在油菜叶面的消解趋势。结果表明:在14、25、35℃下啶虫脒在油菜叶面消解的半衰期分别为19.3、6.6和5.2 d,同一条件下吡虫啉的消解半衰期分别为8.7、3.8和2.9 d, 两者的消解速度均随温度升高而加快,但消解趋势有所不同;在光照强度为500、3 000、6 000 lx条件下,啶虫脒的消解半衰期分别为19.1、10.4 和6.6 d,吡虫啉的消解半衰期分别为6.9、6.2和3.7 d,两者消解速度均随光强的增加而加快,但光强变化对啶虫脒消解影响更为明显。25℃时,自然叶面、消毒处理叶面啶虫脒消解半衰期分别为6.6 和 8.1 d,吡虫啉为3.8和3.5 d,表明叶面微生物稍加快了啶虫脒的消解,而对吡虫啉的消解影响不显著。

       

      Abstract: Dissipation of acetamiprid and imidacloprid on Chinese mustard(Brassica chinensis)under different environmental and biological factors was investigated in stimulated condition. The half-life value of acetamiprid was 19.3 d,6.6 d and 5.2 d by 14℃、25℃ and 35℃,respectively.While that of imidacloprid was 8.7 d,3.8 d and 2.9 d in the same conditions. Although both of the dissipation speeds were accelrated with increasing temperature,their dissipation trends were not always uniform and the dissipation speed of imidacloprid was much faster than that of acetamiprid in the same condition. Under the light intensities of 500 lx,3 000 lx and 6 000 lx,the half-life value of acetamiprid was 19.1 d ,10.4 d and 6.6 d,and that of imidacloprid was 6.9 d,6.2 d and 3.7 d.Both of them were also depleted faster with increasing of light intensity,but the effect on acetamiprid depletions was more significantly than that on imidacloprid. By 25℃ and 6 000 lx light intensity,the half-life value of acetamiprid was 8.1 d and 6.6 d,that of imidacloprid was 3.5 d and 3.8 d with sterilization and nonsterilization of the leaves surface.Influence of microorganism to depletion speed on acetamprid wasalso more significant than that on imidacloprid.

       

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