Chines Journal of Vector Biology and Control ›› 2021, Vol. 32 ›› Issue (1): 26-29.DOI: 10.11853/j.issn.1003.8280.2021.01.004

• Experimental Study • Previous Articles     Next Articles

Determination of toxicity of tetramethrin and dinotefuran mixtures against Blattella germanica

LIU Yu-chao, LI Ya-lei, ZHANG Jia-wei, WANG Zong-qing   

  1. Laboratory of Blattodea Systemetics, College of Plant Protection, Southwest University, Beibei, Chongqing 400715, China
  • Received:2020-08-22 Online:2021-02-20 Published:2021-02-20
  • Supported by:
    Supported by the National Natural Science Foundation of China (No. 31872271)


刘育超, 李娅蕾, 张佳伟, 王宗庆   

  1. 西南大学植物保护学院, 蜚蠊目系统学实验室, 重庆 北碚 400715
  • 通讯作者: 王宗庆,
  • 作者简介:刘育超,男,在读硕士,主要从事德国小蠊防治研究工作,
  • 基金资助:

Abstract: Objective To determine the killing effects of tetramethrin and dinotefuran mixtures on Blattella germanica, and to screen for the formula with a synergistic effect. Methods SPSS 22.0 software was applied to determine the regression equation of toxicity and median lethal concentration (LC50). The co-toxicity factor and co-toxicity coefficient were employed to evaluate the killing effects of tetramethrin and dinotefuran mixtures on B. germanica, and identify the optimal ratio of tetramethrin to dinotefuran. Results At 72 h after treatment, the LC50 values of tetramethrin and dinotefuran against the male adults of B. germanica were 1 376.86 mg/L and 3.97 mg/L, respectively. When the mass ratio of tetramethrin to dinotefuran was between 231:1 and 3 123:1, the mixture had a significant synergistic effect. The optimal mass ratio was 360:1, with a co-toxicity coefficient of 190.09 and an LC50 of 366.70 mg/L at 72 h after treatment. Conclusion The mixture of tetramethrin and dinotefuran shows a significant synergistic killing effect on B. germanica.

Key words: Tetramethrin, Dinotefuran, Blattella germanica, Co-toxicity coefficient, Mixture

摘要: 目的 研究2种药剂复配对德国小蠊的杀蟑活性,筛选对德国小蠊防治具有增效作用的复配药剂配方。方法 通过SPSS 22.0软件进行数据处理,求得毒力回归方程和半数致死浓度(LC50),以共毒因子法和共毒系数法评价胺菊酯和呋虫胺对德国小蠊的联合杀蟑活性及筛选最佳配比。结果 胺菊酯与呋虫胺对德国小蠊雄成虫处理后72 h的LC50值分别为1 376.86和3.97 mg/L,胺菊酯与呋虫胺以质量比为231:1~3 123:1混合具有明显增效作用,最佳质量配比为360:1,对德国小蠊处理后72 h的共毒系数为190.09,LC50值为366.70 mg/L。结论 胺菊酯和呋虫胺复配对德国小蠊的防治具有明显的增效作用。

关键词: 胺菊酯, 呋虫胺, 德国小蠊, 共毒系数, 复配

CLC Number: