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Acaricidal activities of the active component of Lycopus lucidus oil and its derivatives against house dust and stored food mites (Arachnida: Acari)
Author(s) -
Yang JiYeon,
Lee HoiSeon
Publication year - 2012
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.2295
Subject(s) - tyrophagus putrescentiae , deet , acaricide , acari , food science , toxicology , biology , botany
BACKGROUND: Recent studies have focused on materials derived from plant extracts as mite control products against house dust and stored food mites because repeated use of synthetic acaricides had led to resistance and unwanted activities on non‐target organisms. The aim of this study was to evaluate the acaricidal activity of materials derived from Lycopus lucidus against Dermatophagoides farinae, D. pteronyssinus and Tyrophagus putrescentiae . RESULTS: The LD 50 values of L. lucidus oil were 2.19, 2.25 and 8.45 µg cm −2 against D. farinae, D. pteronyssinus and T. putrescentiae . The acaricidal constituent of L. lucidus was isolated by chromatographic techniques and identified as 1‐octen‐3‐ol. In a fumigant method against D. farinae , the acaricidal activity of 1‐octen‐3‐ol (0.25 µg cm −2 ) was more toxic than N , N ‐diethyl‐ m ‐toluamide (DEET) (36.84 µg cm −2 ), followed by 3,7‐dimethyl‐1‐octen‐3‐ol (0.29 µg cm −2 ), 1‐octen‐3‐yl butyrate (2.32 µg cm −2 ), 1‐octen‐3‐yl acetate (2.42 µg cm −2 ), 3,7‐dimethyl‐1‐octene (9.34 µg cm −2 ) and benzyl benzoate (10.02 µg cm −2 ). In a filter paper bioassay against D. farinae , 1‐octen‐3‐ol (0.63 µg cm −2 ) was more effective than DEET (20.64 µg cm −2 ), followed by 3,7‐dimethyl‐1‐octen‐3‐ol (1.09 µg cm −2 ). CONCLUSION: 1‐Octen‐3‐ol and 3,7‐dimethyl‐1‐octen‐3‐ol could be useful as natural agents for the management of three mite species. Copyright © 2011 Society of Chemical Industry