Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of Insecticides
Background: The irritant effect of some insecticides can cause a proportion of mosquitoes to leave the sprayed rooms before acquiring a lethal dose, so the repeated contact al sub-lethal dose may lead to extent the resistance. Methods: Larvae and pupae of Culex pipiens complex were collected in mass...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2016-05-01
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| Series: | Journal of Arthropod-Borne Diseases |
| Subjects: | |
| Online Access: | https://jad.tums.ac.ir/index.php/jad/article/view/148 |
| _version_ | 1818085105965465600 |
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| author | Sara Rahimi Hassan Vatandoost Mohammad Reza Abai Ahmad Raeisi Ahmad Ali Hanafi-Bojd Fatemeh Rafi |
| author_facet | Sara Rahimi Hassan Vatandoost Mohammad Reza Abai Ahmad Raeisi Ahmad Ali Hanafi-Bojd Fatemeh Rafi |
| author_sort | Sara Rahimi |
| collection | DOAJ |
| description | Background: The irritant effect of some insecticides can cause a proportion of mosquitoes to leave the sprayed rooms before acquiring a lethal dose, so the repeated contact al sub-lethal dose may lead to extent the resistance.
Methods: Larvae and pupae of Culex pipiens complex were collected in mass from open canals of waste water in capital city Tehran and reared to obtain the first generation at laboratory. Sugar-fed 2–3 days female mosquitoes were used for the experiments and compared with laboratory strain. The irritability tests of insecticides impregnated papers were measured in plastic conical exposure chambers placed which implemented at controlled conditions according to the method described by WHO .Number of take-offs were counted during 15 minutes of exposure time.
Results: DDT had the most irritancy effect against field population of Cx. pipiens. DDT, permethrin and deltamethrin was moderately irritable against laboratory strain, whereas, addition to three previous insecticides, malathion, cyfluthrin and propoxur should be also considered as moderately irritable insecticides for field population of. Irritability level of etofenprox, fenithrothion, bendiocarb, and lambdacyhalothrin did not differ from control group.
Conclusion: The irritability response of mosquitoes may have a negative impact on control measures. Periodical execution of irritability tests with insecticides that routinely used in vector control program is highly recommended. |
| first_indexed | 2024-12-10T20:04:30Z |
| format | Article |
| id | doaj.art-302f067c27934c429c6d02e423b873aa |
| institution | Directory Open Access Journal |
| issn | 1735-7179 2322-2271 |
| language | English |
| last_indexed | 2024-12-10T20:04:30Z |
| publishDate | 2016-05-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Journal of Arthropod-Borne Diseases |
| spelling | doaj.art-302f067c27934c429c6d02e423b873aa2022-12-22T01:35:25ZengTehran University of Medical SciencesJournal of Arthropod-Borne Diseases1735-71792322-22712016-05-01102134Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of InsecticidesSara Rahimi0Hassan Vatandoost1Mohammad Reza Abai2Ahmad Raeisi3Ahmad Ali Hanafi-Bojd4Fatemeh Rafi5Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, IranDepartment of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, IranNational Program Manager for Malaria Control, Center for Communicable Diseases, Ministry of Health and Medical Education, Tehran, IranDepartment of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, IranBackground: The irritant effect of some insecticides can cause a proportion of mosquitoes to leave the sprayed rooms before acquiring a lethal dose, so the repeated contact al sub-lethal dose may lead to extent the resistance. Methods: Larvae and pupae of Culex pipiens complex were collected in mass from open canals of waste water in capital city Tehran and reared to obtain the first generation at laboratory. Sugar-fed 2–3 days female mosquitoes were used for the experiments and compared with laboratory strain. The irritability tests of insecticides impregnated papers were measured in plastic conical exposure chambers placed which implemented at controlled conditions according to the method described by WHO .Number of take-offs were counted during 15 minutes of exposure time. Results: DDT had the most irritancy effect against field population of Cx. pipiens. DDT, permethrin and deltamethrin was moderately irritable against laboratory strain, whereas, addition to three previous insecticides, malathion, cyfluthrin and propoxur should be also considered as moderately irritable insecticides for field population of. Irritability level of etofenprox, fenithrothion, bendiocarb, and lambdacyhalothrin did not differ from control group. Conclusion: The irritability response of mosquitoes may have a negative impact on control measures. Periodical execution of irritability tests with insecticides that routinely used in vector control program is highly recommended.https://jad.tums.ac.ir/index.php/jad/article/view/148IrritabilityInsecticidesCulex pipiensTehranIran |
| spellingShingle | Sara Rahimi Hassan Vatandoost Mohammad Reza Abai Ahmad Raeisi Ahmad Ali Hanafi-Bojd Fatemeh Rafi Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of Insecticides Journal of Arthropod-Borne Diseases Irritability Insecticides Culex pipiens Tehran Iran |
| title | Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of Insecticides |
| title_full | Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of Insecticides |
| title_fullStr | Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of Insecticides |
| title_full_unstemmed | Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of Insecticides |
| title_short | Irritability Levels of Field and Laboratory Population of Culex pipiens Complex in Tehran to Different Groups of Insecticides |
| title_sort | irritability levels of field and laboratory population of culex pipiens complex in tehran to different groups of insecticides |
| topic | Irritability Insecticides Culex pipiens Tehran Iran |
| url | https://jad.tums.ac.ir/index.php/jad/article/view/148 |
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