Abstract: Objective To determine the efficacy of chlorfenapyr bait to control Reticulitermes flaviceps and to provide new measure for the control of this species. Methods The filter- paper bait and cellulose bait were used to determine the toxicity of chlorfenapyr on the workers of R. flaviceps in indoor bioassay and the monitor-controlling device with a bag of chlorfenapyr bait was used to determine the lethal effect of chlorfenapyr on the colony of R. flaviceps in the field test. Results Chlorfenapyr had good toxic effect on the R. flaviceps workers at the concentrations of 31.25-500.00 mg/L and the workers of R. flaviceps died within 7-8 d in the choice test. At the same test period, the consumption of filter paper treated with 500.00 mg/L chlorfenapyr was 81.31% of the consumption amount of the filter paler treated with distilled water. In the field, 0.05% chlorfenapyr bait had good control effect on the colony of R. flaviceps. The colony of R. flaviceps was eliminated within 30-122 d when an average weight of 44.6 g bait was consumed. Conclusion The 0.05% chlorfenapyr bait effectively controlled the colony of R. flaviceps. It is suggested to apply chlorfenapyr bait to control R. flaviceps after further test in different areas.

Key words: Reticulitermes flaviceps, Chlorfenapyr, Bait, Repellency, Control effect

摘要： 目的 调查溴虫腈饵剂防治黄胸散白蚁的效果，为黄胸散白蚁的防治提供新技术手段。方法 室内利用滤纸饵剂和纤维素饵剂测定溴虫腈对黄胸散白蚁的毒效，现场试验采用白蚁监测控制装置与溴虫腈饵剂相结合的方法测定溴虫腈饵剂对黄胸散白蚁的灭杀效果；利用SPSS 20.0软件对黄胸散白蚁工蚁死亡率和取食滤纸片的量进行方差分析。结果 在31.25~500.00 mg/L的供试浓度下，溴虫腈对黄胸散白蚁具有良好的毒杀效果；选择取食条件下，供试的黄胸散白蚁工蚁在7~8 d内全部死亡。在相同时间内，黄胸散白蚁工蚁取食500.00 mg/L溴虫腈处理的滤纸片的量仅为蒸馏水处理的滤纸片的81.31%。野外条件下，0.05%溴虫腈饵剂对黄胸散白蚁巢群具有良好的灭杀效果，平均取食44.6 g饵剂后均在30~122 d内死亡。结论 0.05%溴虫腈饵剂可有效地防治黄胸散白蚁巢群，应在生产中进一步验证后推广应用。

关键词: 黄胸散白蚁, 溴虫腈, 饵剂, 驱避性, 防治效果