Toxicity of selected organophosphate and pyrethroid insecticides against larval and adult stages of Culex quinquefasciatus

Culex quinquefasciatus are amongst the most commonly found mosquitoes in Pakistan. Besides biting and annoying, these mosquitoes have the potential to transmit many vector-borne diseases such as japanese encephalitis, west nile fever etc. Therefore, the current study was planned to test most commonl...

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Bibliographic Details
Published in:International journal of tropical insect science 2022-08, Vol.42 (4), p.3189-3192
Main Authors: Zubair, Muhammad, Khan, Hafiz Azhar Ali, Akram, Waseem, Zia, Khurram, Ahsan, Rana Muhammad Naeem, Sharif, Malik Muhammad Shahbaz, Qamar, Huma, Malik, Muhammad Kamil
Format: Article
Language:English
Subjects:
adults
Aquatic insects
bifenthrin
Biomedical and Life Sciences
Chlorpyrifos
Culex quinquefasciatus
Culicidae
Cyhalothrin
Deltamethrin
Encephalitis
Entomology
Fever
Infectious diseases
Insecticides
insects
lambda-cyhalothrin
larvae
lethal concentration 50
Life Sciences
Mosquitoes
Organophosphates
Pakistan
Pesticides
profenofos
pyrethrins
Pyrethroids
Short Communications
temephos
Toxicity
Vector-borne diseases
West Nile fever
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Summary:Culex quinquefasciatus are amongst the most commonly found mosquitoes in Pakistan. Besides biting and annoying, these mosquitoes have the potential to transmit many vector-borne diseases such as japanese encephalitis, west nile fever etc. Therefore, the current study was planned to test most commonly used chemicals belonging to Organophosphates (Profenofos, Chlorpyrifos, Temephos) and Pyrethroids (Bifenthrin, Lambda-cyhalothrin, Deltamethrin) against Cx. quinquefasciatus following WHO guidelines. The results revealed median lethal concentration (LC 50 ) value of most effective insecticides against larval population; 0.02 mg/l for Temephos and 0.003 mg/l for Bifenthrin among Organophoshates and Pyrethroids respectively. Adulticidal toxicity of Deltamethrin 5 WP was 5.66 mg/l. These insecticides were proved to be more effective against different stages of Cx. quinquefasciatus that might be helpful in designing an effective Integrated Mosquito Management (IMM) program.
ISSN:1742-7592
1742-7584
1742-7592
DOI:10.1007/s42690-022-00850-2