Laboratory Evaluation of Larvicidal Activity of the Essential oil of Allium tuberosum Roots and its Selected Major Constituent Compounds Against Aedes albopictus (Diptera: Culicidae).
The aim of this research was to evaluate larvicidal activity of the essential oil of Allium tuberosum Rottler ex Sprengle roots and its constituents against larval mosquitoes (Aedes albopictus Skuse). Essential oil of A. tuberosum was obtained by hydrodistillation and analyzed by gas chromatography and gas chromatography-mass spectrometry. The major constituents of the oil were found to be sulfur-containing compounds, including allyl methyl trisulfide (35.19%), diallyl disulfide (28.31%), diallyl trisulfide (20.91%), and dimethyl trisulfide (12.33%). The essential oil of A. tuberosum exhibited larvicidal activity against the fourth-instar larvae of Ae. albopictus, with an LC50 value of 18 μg/ml. The constituents compounds-diallyl trisulfide (LC50 = 4 μg/ml) and diallyl disulfide (LC50 = 6 μg/ml)-possessed stronger larvicidal activity than allyl methyl trisulfide (LC50 = 27 μg/ml) and dimethyl trisulfide (LC50 = 35 μg/ml) against the fourth-instar larvae of Ae. albopictus. The results indicated that the essential oil of A. tuberosum and its major constituents have good potential as a source for natural larvicides.
Department of Entomology, China Agricultural University, 2 Yuanmingyuan West Rd., Haidian District, Beijing 100193, China. zhilongliu@cau.edu.cn.
Xin Chao
XC
Liu
Department of Plant Pathology, China Agricultural University, 2 Yuanmingyuan West Rd., Haidian District, Beijing 100193, China.
Ligang
L
Zhou
State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
Qiyong
Q
Liu
Department of Entomology, China Agricultural University, 2 Yuanmingyuan West Rd., Haidian District, Beijing 100193, China. zhilongliu@cau.edu.cn.
Zhi Long
ZL
Liu
D000330:Aedes / Q000254:growth & development; D000818:Animals; D027782:Chive / Q000737:chemistry*; D007306:Insecticides; D007814:Larva; D009032:Mosquito Control; D009822:Oils, Volatile; D018517:Plant Roots / Q000737:chemistry
D007306:Insecticides; D009822:Oils, Volatile
diallyl disulfide; diallyl trisulfide; essential oil; larvicidal activity