International Journal of Ecotoxicology and Ecobiology

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Field Evaluation of Lethal Ovitraps for the Control of Dengue Vectors in Islamabad, Pakistan

Received: 22 November 2016    Accepted: 14 December 2016    Published: 16 January 2017
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Abstract

Limited success has been attained using long-established mosquito vector control methods to prevent dengue transmission. Integrated disease control programs making use of alternative tools, e.g. Lethal ovitraps may provide greater prospects for monitoring and reducing vector populations and disease transmission in order to provide new robust data on the efficiency of entomological surveillance methods to control important dengue and other disease vectors in Pakistan and other geographic regions. The purpose of this study was to figure out the efficiency of Lethal ovitraps in eggs collection baited with grass infusion. This study also aimed at exploring Aedes infestation indices and generation of baseline data by indoor and outdoor ovi-trapping. Field evaluation of a Lethal ovitraps containing Deltamethrin-treated strip was carried out for monitoring the dengue vector (s) Aedes mosquitoes during November-February, 2015 in Rawal Town, Islamabad, Pakistan. The study site was divided into treatment and control blocks with 20 randomly selected houses for each block. Each block received 40 Lethal ovitraps (LOs) with and without treatment. The oviposition response by Aedes mosquitoes was measured using the Ovitrap Positive Index (OPI) and the Eggs Density Index (EDI). There were six weekly eggs collections made. Which yielded 510 Aedes eggs with 32 and 478 from the treatment and the control blocks, respectively, indicating the damaging effect of Deltamethrin on the treatment group. The weekly egg collections yielded 510 Aedes eggs with 32 and 478 from the treatment and the control blocks, respectively, indicating the damaging effect of Deltamethrin on the treatment group. The OPI response of treatment and control ovitraps was different. OPI was higher in the controls than in the treatment groups. Moreover, there was a significant difference in EDI of treatment compared to control. There was complete inhibition of larvae emergence in Lethal ovitraps in comparison to the control, where 50.20% larvae were formed. The results indicated that the Lethal ovitraps proved to be a very effective tool for monitoring and controlling Aedes populations under natural conditions. Furthermore, a significant decrease in the number of eggs was obtained in the treated group. At lower operational costs and consistency, these LOs can be practically used as a benign tool for measuring infestation rates for entomological surveillance of Aedes species.

DOI 10.11648/j.ijee.20170201.13
Published in International Journal of Ecotoxicology and Ecobiology (Volume 2, Issue 1, March 2017)
Page(s) 16-25
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Aedes Aegypt, Aedes Albopictus, Lethal Ovitrap, Deltamethrin, Dengue

References
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Author Information
  • Department of Medical Entomology and Disease Vector Control, Health Services Academy, Islamabad, Pakistan

  • Department of Medical Entomology and Disease Vector Control, Health Services Academy, Islamabad, Pakistan

  • Department of Medical Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt; Public Health Pests Laboratory of Jeddah Gov., Jeddah, Saudi Arabia

  • Department of Entomology, PMAS-Arid Agriculture University, Rawalpindi, Pakista

  • Department of Parasitology and Animal Diseases, Veterinary Research Division, National Research Centre, Cairo, Egypt

  • Department of Entomology, University of Agriculture, Faisalabad, Pakistan

  • Public Health Pests Laboratory of Jeddah Gov., Jeddah, Saudi Arabia

  • Department of Medical Entomology and Disease Vector Control, Health Services Academy, Islamabad, Pakistan

  • Department of Entomology, Ain Shams University, Abbassia, Cairo, Egypt

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    Imrana Noreen, Imtinan Akram Khan, Emad Khater, Muhammad Naeem, Ahmad Mohammad Allam, et al. (2017). Field Evaluation of Lethal Ovitraps for the Control of Dengue Vectors in Islamabad, Pakistan. International Journal of Ecotoxicology and Ecobiology, 2(1), 16-25. https://doi.org/10.11648/j.ijee.20170201.13

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    Imrana Noreen; Imtinan Akram Khan; Emad Khater; Muhammad Naeem; Ahmad Mohammad Allam, et al. Field Evaluation of Lethal Ovitraps for the Control of Dengue Vectors in Islamabad, Pakistan. Int. J. Ecotoxicol. Ecobiol. 2017, 2(1), 16-25. doi: 10.11648/j.ijee.20170201.13

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    Imrana Noreen, Imtinan Akram Khan, Emad Khater, Muhammad Naeem, Ahmad Mohammad Allam, et al. Field Evaluation of Lethal Ovitraps for the Control of Dengue Vectors in Islamabad, Pakistan. Int J Ecotoxicol Ecobiol. 2017;2(1):16-25. doi: 10.11648/j.ijee.20170201.13

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  • @article{10.11648/j.ijee.20170201.13,
      author = {Imrana Noreen and Imtinan Akram Khan and Emad Khater and Muhammad Naeem and Ahmad Mohammad Allam and Rizwan Ahmed and Muhammad Mohsin and Soaib Ali Hassan and Doaa E. Soliman},
      title = {Field Evaluation of Lethal Ovitraps for the Control of Dengue Vectors in Islamabad, Pakistan},
      journal = {International Journal of Ecotoxicology and Ecobiology},
      volume = {2},
      number = {1},
      pages = {16-25},
      doi = {10.11648/j.ijee.20170201.13},
      url = {https://doi.org/10.11648/j.ijee.20170201.13},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijee.20170201.13},
      abstract = {Limited success has been attained using long-established mosquito vector control methods to prevent dengue transmission. Integrated disease control programs making use of alternative tools, e.g. Lethal ovitraps may provide greater prospects for monitoring and reducing vector populations and disease transmission in order to provide new robust data on the efficiency of entomological surveillance methods to control important dengue and other disease vectors in Pakistan and other geographic regions. The purpose of this study was to figure out the efficiency of Lethal ovitraps in eggs collection baited with grass infusion. This study also aimed at exploring Aedes infestation indices and generation of baseline data by indoor and outdoor ovi-trapping. Field evaluation of a Lethal ovitraps containing Deltamethrin-treated strip was carried out for monitoring the dengue vector (s) Aedes mosquitoes during November-February, 2015 in Rawal Town, Islamabad, Pakistan. The study site was divided into treatment and control blocks with 20 randomly selected houses for each block. Each block received 40 Lethal ovitraps (LOs) with and without treatment. The oviposition response by Aedes mosquitoes was measured using the Ovitrap Positive Index (OPI) and the Eggs Density Index (EDI). There were six weekly eggs collections made. Which yielded 510 Aedes eggs with 32 and 478 from the treatment and the control blocks, respectively, indicating the damaging effect of Deltamethrin on the treatment group. The weekly egg collections yielded 510 Aedes eggs with 32 and 478 from the treatment and the control blocks, respectively, indicating the damaging effect of Deltamethrin on the treatment group. The OPI response of treatment and control ovitraps was different. OPI was higher in the controls than in the treatment groups. Moreover, there was a significant difference in EDI of treatment compared to control. There was complete inhibition of larvae emergence in Lethal ovitraps in comparison to the control, where 50.20% larvae were formed. The results indicated that the Lethal ovitraps proved to be a very effective tool for monitoring and controlling Aedes populations under natural conditions. Furthermore, a significant decrease in the number of eggs was obtained in the treated group. At lower operational costs and consistency, these LOs can be practically used as a benign tool for measuring infestation rates for entomological surveillance of Aedes species.},
     year = {2017}
    }
    

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    T1  - Field Evaluation of Lethal Ovitraps for the Control of Dengue Vectors in Islamabad, Pakistan
    AU  - Imrana Noreen
    AU  - Imtinan Akram Khan
    AU  - Emad Khater
    AU  - Muhammad Naeem
    AU  - Ahmad Mohammad Allam
    AU  - Rizwan Ahmed
    AU  - Muhammad Mohsin
    AU  - Soaib Ali Hassan
    AU  - Doaa E. Soliman
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    DO  - 10.11648/j.ijee.20170201.13
    T2  - International Journal of Ecotoxicology and Ecobiology
    JF  - International Journal of Ecotoxicology and Ecobiology
    JO  - International Journal of Ecotoxicology and Ecobiology
    SP  - 16
    EP  - 25
    PB  - Science Publishing Group
    SN  - 2575-1735
    UR  - https://doi.org/10.11648/j.ijee.20170201.13
    AB  - Limited success has been attained using long-established mosquito vector control methods to prevent dengue transmission. Integrated disease control programs making use of alternative tools, e.g. Lethal ovitraps may provide greater prospects for monitoring and reducing vector populations and disease transmission in order to provide new robust data on the efficiency of entomological surveillance methods to control important dengue and other disease vectors in Pakistan and other geographic regions. The purpose of this study was to figure out the efficiency of Lethal ovitraps in eggs collection baited with grass infusion. This study also aimed at exploring Aedes infestation indices and generation of baseline data by indoor and outdoor ovi-trapping. Field evaluation of a Lethal ovitraps containing Deltamethrin-treated strip was carried out for monitoring the dengue vector (s) Aedes mosquitoes during November-February, 2015 in Rawal Town, Islamabad, Pakistan. The study site was divided into treatment and control blocks with 20 randomly selected houses for each block. Each block received 40 Lethal ovitraps (LOs) with and without treatment. The oviposition response by Aedes mosquitoes was measured using the Ovitrap Positive Index (OPI) and the Eggs Density Index (EDI). There were six weekly eggs collections made. Which yielded 510 Aedes eggs with 32 and 478 from the treatment and the control blocks, respectively, indicating the damaging effect of Deltamethrin on the treatment group. The weekly egg collections yielded 510 Aedes eggs with 32 and 478 from the treatment and the control blocks, respectively, indicating the damaging effect of Deltamethrin on the treatment group. The OPI response of treatment and control ovitraps was different. OPI was higher in the controls than in the treatment groups. Moreover, there was a significant difference in EDI of treatment compared to control. There was complete inhibition of larvae emergence in Lethal ovitraps in comparison to the control, where 50.20% larvae were formed. The results indicated that the Lethal ovitraps proved to be a very effective tool for monitoring and controlling Aedes populations under natural conditions. Furthermore, a significant decrease in the number of eggs was obtained in the treated group. At lower operational costs and consistency, these LOs can be practically used as a benign tool for measuring infestation rates for entomological surveillance of Aedes species.
    VL  - 2
    IS  - 1
    ER  - 

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