Sachin Parthi
Research Scholar at University of Madras
Supervisors: Ramanibai Ravichandaran
Phone: 9600504175
Address: E. Parthiban
Research scholar
Department of Zoology
University of Madras
Guindy Campus
chennai-25
Supervisors: Ramanibai Ravichandaran
Phone: 9600504175
Address: E. Parthiban
Research scholar
Department of Zoology
University of Madras
Guindy Campus
chennai-25
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saline) seed soluble extract and its control of mosquito population.
Methods: Ovicidal, larvicidal and pupicidal activity of A. squamosa crude soluble seed
kernel extract was determined according to World Health Organization. The mortality of each
mosquito stage was recorded after 24 h exposured to plant material. Toxicity assay was used
to assess the non-target organisms with different concentrations according to Organisation for
Economic Co-operation and Development.
Results: The aqueous solubilized extracts of A. squamosa elicit the toxicity against all stages
of Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus, and the LC50 values against
stages of egg, 1st-4th larvae were (1.45 and 1.26–2.5 mg/mL), (1.12 and 1.19–2.81 mg/
mL) and (1.80 and 2.12–3.41 mg/mL) respectively. The pupicidal activity also brought forth
amended activity against all three mosquitoes species, and the LC50 values were consider to
be 3.19, 2.42 and 4.47 mg/mL. Ultimately there was no mortality observed from non-target
organism of Chironomus costatus.
Conclusions: Based on the findings of the study, it suggests that the use of A. squamosa plant
extract can act as an alternate insecticidal agents for controlling target mosquitoes without
affecting the non-target aquatic insect. Further investigation to identify the active compounds
and their mechanisms of action is recommended.