Assessing the Susceptibility Status of Cypermethrin resistance in German Cockroaches (Blattella germanica: Blattellidae) to Hydramethylnon Gel Bait

Authors

  • Ahmadali Enayati Department of Medical Entomology, School of Public Health and Health Research Centre, Mazandaran University of Medical Sciences, Sari, Iran
  • Alireza Saneidehkordi Department of Medical Entomology and Vector Control, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
  • Atiyeh Rafinejad Department of Medical Entomology & Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  • Babak Shiravand Department of Medical Entomology & Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  • Davoud Keshavarzi Department of Medical Entomology & Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  • Hassan Vatandoost Department of Medical Entomology & Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  • Javad Rafinejad Department of Medical Entomology & Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  • Mojgan Bani-Ardalani Department of Medical Entomology & Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
Abstract:

Background: The German cockroach (Blatella germanica) is one of the most important vectors of public health interest due to its involvement in the transmission of infectious diseases. Different insecticides are used to control cockroaches; however, resistance developed against most of insecticides has made them ineffective. Attempts should always be made to find proper alternatives to control this insect. Methods: In the present study, B. germanica was collected from a hospital in Tehran. Insecticide susceptibility of the cockroaches to cypermethrin was determined using the WHO glass jar method and discriminating doses.Mortality was assessed at 14 h intervals after exposure to bait. Results: The results showed a resistance ratio of about 3.4 to cypermethrin and a complete susceptibility of the field strain to Hydramethylnon gel bait insecticide when they were compared with the susceptible strain. Therefore, there was no cross resistance pattern between these insecticides. This report is the first study on the susceptibility status of resistantB. germanica to Hydramethylnon bait in Iran. Conclusions:We suggest that the use of Hydramethylnon gel bait could be used as an effective control method especially when other insecticides fail to control the cockroach populations0.0.

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Journal title

volume 25  issue 5

pages  396- 404

publication date 2018-09-01

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