Authors :
Shravani. G; Divya Sri. K; Dayanika Jadav; Navya. P; Nivarna Reddy M; Prof. Dr. Madhavi. M; Mahesh. L
Volume/Issue :
Volume 8 - 2023, Issue 5 - May
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://bit.ly/3BGNIVE
DOI :
https://doi.org/10.5281/zenodo.7953914
Abstract :
Dengue fever is a significant public health
issue in India, affecting millions of people annually. The
virus is transmitted by infected Aedes mosquitoes, and
India is among the countries most affected by dengue
fever, with an estimated 100 million new cases each year
worldwide. Plant essential oils (EOs) are the most
preferred phytochemicals to control mosquito larvae. In
the present study, the larvicidal efficacy of Thyme,
Camphor, and Eucalyptus EOs was investigated against
the 4th instar larva of Aedes aegypti. Thyme, Eucalyptus,
and Camphor EOs were procured from a local organic
shop in Hyderabad. 0.5%, 1%, 2%, and 3% oils were
prepared using Tween 80 as an emulsifier. A control
solution was prepared excluding essential oils. All three
tested EOs were proved to be efficient against the 4th
instar larvae of Ae. aegypti. However, thyme EO showed
better larvicidal efficacy than the remaining two EOs.
Thyme, Eucalyptus, and Camphor EOs have the
potential to be used as effective larvicides against Ae.
aegypti.
Keywords :
Biopesticides, Mosquito Larvicides, Biological Control, Dengue Vector Control.
Dengue fever is a significant public health
issue in India, affecting millions of people annually. The
virus is transmitted by infected Aedes mosquitoes, and
India is among the countries most affected by dengue
fever, with an estimated 100 million new cases each year
worldwide. Plant essential oils (EOs) are the most
preferred phytochemicals to control mosquito larvae. In
the present study, the larvicidal efficacy of Thyme,
Camphor, and Eucalyptus EOs was investigated against
the 4th instar larva of Aedes aegypti. Thyme, Eucalyptus,
and Camphor EOs were procured from a local organic
shop in Hyderabad. 0.5%, 1%, 2%, and 3% oils were
prepared using Tween 80 as an emulsifier. A control
solution was prepared excluding essential oils. All three
tested EOs were proved to be efficient against the 4th
instar larvae of Ae. aegypti. However, thyme EO showed
better larvicidal efficacy than the remaining two EOs.
Thyme, Eucalyptus, and Camphor EOs have the
potential to be used as effective larvicides against Ae.
aegypti.
Keywords :
Biopesticides, Mosquito Larvicides, Biological Control, Dengue Vector Control.
