变电站内红火蚁防治效果观察

Control effect of Solenopsis invicta Buren in transformer substations

目的采用红火蚁克星Ⅳ型饵剂对多个变电站进行红火蚁防治效果观察。方法采用大面积撒施和单蚁巢处理相结合进行统一灭治。结果1个月后,11个变电站中有7个已经诱集不到红火蚁;2个月后,只在2个变电站外围发现蚁巢;3个月后,各个变电站均没有诱测到活动工蚁。结论红火蚁克星Ⅳ型饵剂能够快速杀灭红火蚁,除个别变电站初次施药后需要进行1次补施之外,多数变电站内一次施药后就能够杀灭红火蚁种群。在施药后18个月的监测调查中,各变电站内均未再诱测到活动工蚁,表明变电站内的红火蚁防治效果满意。

Objective To test the control effect of Solenopsis invicta Buren in transformer substation using attractant of type iV, Methods Using the methods of scattering the attracant in broad area and diposing the individual nest. Results 7 transformer substations had no S. invicta any more among the 11 transformer substations which had used bait for one month. Some nests were discovered outside the wall of 2 transformer substations two months later. There were no S. invicta being trapped any more after three months. Conclusion Attractant of type Ⅳ can kill S, invicta quickly. S. invicta can be killed completely in most transformer substations using the attractant one time except that a few should use the bait for another time. S. invicta was not trapped any more in the later 18 months＇ in- vestigation and monitoring after using the attractant, which had good efficacy against S. invicta.