首页|Control of Spodoptera littoralis (Boisd.) Larvae Using Bioactive Chromone Derivative Isolated from Ruta angustifolia (Pers.)
Control of Spodoptera littoralis (Boisd.) Larvae Using Bioactive Chromone Derivative Isolated from Ruta angustifolia (Pers.)
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NSTL
? 2022, Agri Bio Research Publishers. All rights reserved.The present work is the first isolation of a chromone derivative, 2-(2-methoxyphenylethyl)-4H-chromen-4-one from the acetonic extract of Ruta angustifolia leaves using thin-layer chromatography and then identified by infrared and mass spectrometry. Results showed that 2-(2-methoxyphenylethyl)-4H-chromen-4-one possessed larvicidal activity against the fourth instar larvae of S. littoralis, which fed on treated leaves under laboratory conditions. LC50 values indicated abnormalities in the epithelial cells, muscles and microvilli using a transmission electron microscope in treated compared to untreated larvae. Moreover, a significant reduction was recorded in both the chitinase enzyme and total lipid content compared to the control. Overall the findings of the study suggest that the use of 2-(2-methoxyphenylethyl)-4H-chromen-4-one can act as a new insecticidal agent for controlling the cotton leaf worm (S. littoralis).
NSTL
