论文部分内容阅读
了解德国小蠊敏感品系（S）和4个杭州品系（ZAU、JC、DH和HZ）对二氯苯醚菊酯、溴氰菊酯、氯氰菊酯、毒死蜱和残杀威5种药剂的敏感性。方法：采用点滴法进行测定。结果：杭州市区德国小蠊品系对供试的3种拟除虫菊酯类药剂已产生抗药性，以二氯苯醚菊酯的抗药性尤为突出，4个杭州品系对该杀虫剂的抗性系数分别为敏感品系的36．6、59．4、38．6和67．1倍；对毒死蜱和残杀威的抗性系数分别是敏感品系的2．2、2．4、2．1和2．0倍以及8．1、5．4、5．3和4．5倍。对德国小蠊HZ品系，分别用氧化胡椒基丁醚（PB）、三磷酸苯酯（TPP）和顺丁烯酸二乙酯（DEM）3种抑制剂，测定对二氯苯醚菊酯的增效作用。活体增效作用研究表明，三种增效剂对HZ种群可分别增效3．69、1．76和1．16倍。结论：HZ品系抗性可能涉及多功能氧化酶（MFO）和羧酸酯酶（CarE）的变化，但与谷胱甘转移酶（GST）的关系可能不大。
To understand the susceptibility of 5 sensitive agents of Blattella germanica (S) and 4 strains of Hangzhou (ZAU, JC, DH and HZ) to permethrin, deltamethrin, cypermethrin, chlorpyrifos and propoxur. Methods: The determination of the use of drip method. Results: The strains of German cockroach in Hangzhou had developed resistance to the three pyrethroids tested, and the resistance to permethrin was particularly prominent. The resistance of four Hangzhou strains to the insecticide The coefficients were 36.6, 59.4, 38.6 and 67.1 times that of the susceptible lines respectively. The resistance coefficients to chlorpyrifos and propoxur were 2.2, 2.4, 2.1 and 2 .0 times and 8.1, 5.4, 5.3 and 4.5 times. For the Blattella germanica HZ strain, three inhibitors of oxidation of pipermethrin (PB), phenyl triphosphate (TPP) and diethyl maleate (DEM) Effective effect. In vivo synergism studies showed that the three synergists can increase 3.69,1.76 and 1.16 times of HZ population respectively. CONCLUSION: The resistance of HZ strain may involve the changes of MFO and CarE, but may not be related to glutathione S-transferase (GST).