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在深圳市龙岗区和宝安区对氟磺酰胺复配毒饵进行药效评价,试验结果表明,施药后3～15d,龙岗实验区蚁巢周围均有死亡工蚁陆续出现。第7d时,0.75%氟磺酰胺复配毒饵防治效果为16.99%,第28d时防治效果达47.43%,在试验结束的第140d时防治效果达97.93%;对照药剂0.5%氟磺酰胺毒饵对红火蚁Solenopsis invicta Buren的防除效果迅速,在第7d防治效果达50%以上。在宝安实验区,蚁巢的防治效果也随施药后时间的延长而增加,第28d的防治效果为51.65%,试验结束时防治效果达到94.72%;对照药剂0.5%氟磺酰胺毒饵42d防治效果达最大值为92.88%。上述结果显示,0.75%氟磺酰胺复配毒饵具有较快压低红火蚁种群密度,持效控制实验区红火蚁种群的特点。
The evaluation of the efficacy of the fluorosulfonamide complex bait was conducted in Longgang District and Bao’an District of Shenzhen City. The results showed that three days after the pesticide application, all the deaths of ants occurred around the ant nest in Longgang Experimental Zone. On the 7th day, the control effect of 0.75% fluorosulfonamide bait was 16.99%, the control effect was 47.43% on the 28th day, and the control effect was 97.93% on the 140th day after the test. The control agent 0.5% Ants Solenopsis invicta Buren rapid control effect, in the first 7d control effect of more than 50%. In Baoan experimental area, the control effect of ant nests also increased with the prolongation of application time. The control effect on the 28th day was 51.65% and the control effect reached 94.72% at the end of the experiment. The control efficacy of the control agent 0.5% fluorosulfonamide poison bait 42d The maximum value is 92.88%. The above results show that the 0.75% fluorosulfonamide complex bait has the characteristics of rapidly reducing the population density of the red imported fire ant population and controlling the population of the red imported fire ant in the experimental area.