实验室条件下三种粉剂在黑胸散白蚁中的传递性

Transitivity of three kinds of dust against Reticulitermes chinensis under laboratory conditions

实验室条件下，测定0．1％氟虫腈、0．25％氟虫腈和3％伊维菌素三种粉剂在黑胸散白蚁群体中的传递性。结果表明：实验室条件下三种粉剂使供试群体死亡的时间分别为：0．1％氟虫腈粉剂264h即11d，0．25％氟虫腈粉剂168h即7d，3％伊维菌素粉剂240h即10d。实验室结果还表明：同工蚁一样，带粉的兵蚁同样可以做为粉剂毒性传递的媒介。我们建议实际应用中可以优先选择浓度为0．25％的氟虫腈粉剂。

Developing transfer experiments of 0.25 % fipronil dust, 3 % ivermectin dust and 0.1% fipronil dust against Reticuliterrnes chinensis under laboratory conditions. The results indicated that the death time of termite population which treated by three kinds of dust were 264 h （1 ld） for 0.1% fipronil, 168 h （7 d） for 0.25% fipronil and 240 h （10 d） for 3% ivermectin. In addition, soldiers treated by dust could transfer the toxicity as workers in termite population. We propose that 0.25% fipronil dust could be the first choice to be used in practical work.