Adulticidal efficacy of Azadirachta indica (neem tree), Sesamum indicum (til) and Pinus sabinaena (pine tree) extracts against Aedes aegypti under laboratory conditions
Arqum Bakhtyar Zaki, Nazeer Ahmed, Imtiaz Ali Khan, Bismillah Shah, Ashraf Khan, Muhammad Tahir Rasheed, Muhammad Adnan, Khwaja Junaid, Zelle Huma, Saeed Ahmed
Due to the development of resistance to synthetic insecticides, residue problems in the environment and toxic effects on humans and non-target organism, investigators now direct their attention towards the development of new plant based insecticides with less harmful effects. Various compounds including phenolic, terpenoids and alkaloids exist in plants and may jointly or independently contribute to the generation of larvicidal activities of mosquitoes. The results obtained from Pine oil extract used in this study were satisfactory and establish the efficacy. Mortality increases with increase in plant extract concentrations and complete mortality was observed at the concentrations of 8 percent to 10 percent. The lower concentrations were still useful as they showed restless movement for some times with abnormal wagging and then died. Keeping in views the interpretation criteria Neem oil and Til oil considered low adulticidal activity at 24 hours exposure period Pine oil showed high adulticidal activity while after 48 hours exposure period all plant oil extracts showed high adulticidal activity. From the results it can be concluded the crude extract of pine oil extract was an excellent potential for controlling dengue vector mosquito, Aedes aegypti.
Arqum Bakhtyar Zaki, Nazeer Ahmed, Imtiaz Ali Khan, Bismillah Shah, Ashraf Khan, Muhammad Tahir Rasheed, Muhammad Adnan, Khwaja Junaid, Zelle Huma, Saeed Ahmed. Adulticidal efficacy of Azadirachta indica (neem tree), Sesamum indicum (til) and Pinus sabinaena (pine tree) extracts against Aedes aegypti under laboratory conditions. J Entomol Zool Stud 2015;3(6):112-116.