Hee-Kwon Lee, Hoi-Seon Lee
Oct 17, 2016
Citations
1
Influential Citations
23
Citations
Journal
Applied Biological Chemistry
Abstract
Insecticidal activity of 2-isopropyl-5-methylphenol isolated from Thymus vulgaris oil and its derivatives against Tribolium castaneum adults and larvae were evaluated using contact and fumigant bioassays. To elucidate the structure–activity relationship, 2-isopropyl-5-methylphenol and its derivatives were determined. Based on the LD50 values, 2-isopropylphenol was most toxic to T. castaneum adults and larvae, followed by 4-isopropylphenol, 2-methylphenol, 3-methylphenol, and phenol in contact and fumigant bioassays. These results indicate that the introduction of a functional group such as methyl and isopropyl group into the phenol skeleton has an important influence on contact and fumigant toxicities. Furthermore, 2-isopropyl-5-methylphenol and its derivatives could be used as an alternative to control stored-grain insects.