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Insecticidal activity of Epipremnum aureum (Araceae) Leaf extract against the Immature Stages of the Rice Moth Corcyra cephalonica Stainton, 1866 (Lepidoptera: Pyralidae)

Author: Justin Kumar, Grace Marin, Subramanian Arivoli and Samuel Tennyson

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Abstract

Losses in rice storage due to insect pests drastically affects the food, and one of the serious pests is the rice moth, Corcyra cephalonica. Influence of synthetic chemical insecticides has been reported against this pest. Contrary to the chemical insecticides, botanical insecticides or biopesticides derived from plants have been touted as potential alternatives. In the present study, aqueous leaf extract of Epipremnum aureum was tested for its efficacy for the first time against the immature stages of Corcyra cephalonica at concentrations of 1, 2, 5, 10 and 15% by petridish bioassay method with minor alterations. Significant ovicidal activity with percent egg mortality of 57.3, 65.3, 88.0, 92.0 and 96.0; 36.0, 50.6, 62.6, 82.6 and 92.0; 26.6, 36.0, 37.3, 66.6 and 84.0 was achieved at concentrations of 1, 2, 5, 10 and 15% for the eggs of age 24, 48 and 72 hours, and their respective LC50 values were 0.81, 2.03 and 4.28%. However, poor larvicidal activity was noted as they were not able to cause 50% mortality even after 96 hours of exposure. On the basis of the results of the present study, further research is required to explore the phytochemical constituents present in Epipremnum aureum leaf extract responsible for the ovicidal activity against Corcyra cephalonica.

Keywords

Corcyra cephalonica, ovicidal, larvicidal, Epipremnum aureum, aqueous leaf extract

Conclusion

Though the present study being the first report exposed Epipremnum aureum aqueous leaf extracts to exhibit significant ovicidal activity, but at the same time, it is to be noted that they showed poor larvicidal activity.

References

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How to cite this article

Justin Kumar, Grace Marin, Subramanian Arivoli and Samuel Tennyson (2023). Insecticidal activity of Epipremnum aureum (Araceae) Leaf extract against the Immature Stages of the Rice Moth Corcyra cephalonica Stainton, 1866(Lepidoptera: Pyralidae). Biological Forum – An International Journal, 15(6): 610-617.