OVIPOSITION DETERRENT ACTIVITY OF CASSAVA PLANT Manihot esculenta EXTRACTS AGAINST Culex quinquefasciatus

Author(s)	Dr. VINITA VINJOY JERUSHA, Dr. VINEET JOVIN JEMUEL, Prof. Dr. ARULSAMY JEBANESAN
Country	India
Abstract	Biological control methods for mosquitoes include using natural predators, parasites, or pathogens. This has encouraged researchers to find cost-effective, eco-friendly, and low-toxicity options for controlling mosquito larvae.Gravid females of Cx. quinquefasciatus were placed in colony cages with 100 mosquitoes each. Enamel bowls with cesspit water and varying concentrations of Cassava extract were used to record egg rafts laid, with controls including methanol. Bowls were moved to avoid position effects, and each set was repeated six times. The number of eggs laid was counted afterward. The study tested different concentrations of ethanolic leaf extract from M. esculenta on cesspit water to attract mosquito oviposition. The highest number of egg rafts was observed at 200 ppm with 84. 5 rafts, while 40 ppm had the lowest at 39. 8. Higher concentrations resulted in increased attractancy . At 200 ppm, the effective attractancy was 95. 15%. The extract showed potential for controlling Cx. quinquefasciatus by inhibiting egg development and growth.
Keywords	Biological control, M. esculenta, egg rafts, Insecticide, leaf extract
Field	Biology > Zoology
Published In	Volume 6, Issue 6, November-December 2025
Published On	2025-11-12
DOI	https://doi.org/10.63363/aijfr.2025.v06i06.1389
Short DOI	https://doi.org/g998rs

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