TY - JOUR
T1 - Variations in insecticidal activity and chemical compositions of leaf essential oils from Cryptomeria japonica at different ages
AU - Cheng, Sen Sung
AU - Chua, Meng Thong
AU - Chang, Ed Haun
AU - Huang, Chin Gi
AU - Chen, Wei June
AU - Chang, Shang Tzen
PY - 2009/1
Y1 - 2009/1
N2 - The larvicidal effects of the essential oils extracted from the leaves of Cryptomeria japonica at different ages (58, 42, and 26 years old) against 2 mosquito species, Aedes aegypti and Aedes albopictus, were studied. The analysis of major constituents of these essential oils was also investigated. Results obtained from the larvicidal tests, using essential oil from the leaves of 58-year-old C. japonica was found to be most effective against both A. aegypti and A. albopictus larvae, indicating tree age has significant influence on mosquito larvicidal activity. In addition, the eleven pure constituents from C. japonica leaf essential oil were also tested individually against the two mosquito larvae. Among them, α-terpinene, γ-terpinene, p-cymene, 3-carene, terpinolene, and β-myrcene shows strong larvicidal effect against the two mosquito larvae. Among these pure constituents, 3-carene exhibits the best larvicidal effect against A. aegypti and terpinolene shows an excellent inhibitory action against A. albopictus larvae. The results of this study show that the leaf essential oil and its effective constituents might be considered as a potent source for the production of fine natural larvicides.
AB - The larvicidal effects of the essential oils extracted from the leaves of Cryptomeria japonica at different ages (58, 42, and 26 years old) against 2 mosquito species, Aedes aegypti and Aedes albopictus, were studied. The analysis of major constituents of these essential oils was also investigated. Results obtained from the larvicidal tests, using essential oil from the leaves of 58-year-old C. japonica was found to be most effective against both A. aegypti and A. albopictus larvae, indicating tree age has significant influence on mosquito larvicidal activity. In addition, the eleven pure constituents from C. japonica leaf essential oil were also tested individually against the two mosquito larvae. Among them, α-terpinene, γ-terpinene, p-cymene, 3-carene, terpinolene, and β-myrcene shows strong larvicidal effect against the two mosquito larvae. Among these pure constituents, 3-carene exhibits the best larvicidal effect against A. aegypti and terpinolene shows an excellent inhibitory action against A. albopictus larvae. The results of this study show that the leaf essential oil and its effective constituents might be considered as a potent source for the production of fine natural larvicides.
KW - Aedes aegypti
KW - Aedes albopictus
KW - Cryptomeria japonica
KW - Essential oils
KW - Mosquito larvicidal activity
UR - https://www.scopus.com/pages/publications/51349161409
U2 - 10.1016/j.biortech.2007.11.060
DO - 10.1016/j.biortech.2007.11.060
M3 - 文章
C2 - 18178080
AN - SCOPUS:51349161409
SN - 0960-8524
VL - 100
SP - 465
EP - 470
JO - Bioresource Technology
JF - Bioresource Technology
IS - 1
ER -