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作 者 ：王智,颜亨梅,王洪全

期 刊 ：生态学报 2002年 22卷 3期 页码：346~351

关键词：农药；稻田蜘蛛；相对活力；控虫力；生物量；

Keywords:pesticides, paddyfield spiders, relative activity, insect\|control power, creature\|number,

摘 要 ：报道了低剂量的化学农药能增强蜘蛛的相对活力和控虫力 ,并对其相对活力和控虫力增强的原因进行了初步探讨。得出原药∶水 =1 4∶ 5 0 0 0和原药∶水 =1 0∶ 5 0 0 0这两种浓度的杀虫双 [其结构式为 ( CH3 ) 2 NCH( CH2 S2 O3 Na) 2 ]溶液分别是发挥拟水狼蛛和八斑鞘腹蛛控虫力潜能的最适浓度 ,首次提出了蜘蛛和害虫的相对活力的概念 ,并定量地测定了蜘蛛控制害虫的生物量。

Abstract:The low\|dose chemical pesticides was found to strengthen their relative activity and insect\|control power on paddyfield spiders. This article discusses why their relative activity are strengthened.It suggests the most suitable density can bring into play the insects\|control power of Pirata subpiraticus and Coleosoma octomaculatum. The article raises the concept of the relative activity of spiders and pests.

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