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本文报道了对15艘远洋船舶德国小蠊进行了对溴氰菊酯的抗性监测情况,其结果表现为低度耐药现象。中国远洋船舶德国小蠊对溴氰菊酯的抗性已降低到接近敏感水平,其抗性系数均小于2.0;而外籍船舶德国小蠊对溴氰菊酯的抗性比国内船高,其抗性系数大于2.0。在国境卫生检疫媒介控制学组统一指导下,对船舶蜚蠊实行抗性监测4年,中国远洋船舶德国小蠊的侵害率由1988年77.41％下降到1992年的18.29％,效果非常显著,而外籍船舶德国小蠊的侵害率仍呈逐年上升趋势。
In this paper, we reported the surveillance of deltamethrin resistance in 15 ocean-going ships, German cockroach, and the results showed low resistance. The resistance of Chinese cockroaches to deltamethrin in Chinese offshore vessels has been reduced to near sensitive level, and the resistance coefficient is less than 2.0. The resistance of German cockroach to deltamethrin is higher than that of domestic vessels, Sex coefficient greater than 2.0. Under the unified guidance of Frontier Health and Quarantine Media Control Group, the resistance against cockroaches in ships was monitored for 4 years. The invasion rate of German cockroaches from Chinese ocean-going ships dropped from 77.41% in 1988 to 18.29% in 1992, and the effect was very significant. The invasion rate of Blattella germanica, a foreign vessel, is still increasing year by year.