Terminating red imported fire ants using Cinnamomum osmophloeum leaf essential oil.
Eleven compounds from indigenous cinnamon (Cinnamomum osmophloeum) leaf essential oil were identified by GC-MS and the dominant constituent was trans-cinnamaldehyde (79.85%). The toxicity of leaf essential oil and trans-cinnamaldehyde were then determined to study their effectiveness in controlling the red imported fire ant, Solenopsis invicta Buren. The results of the toxicity tests indicated that both the indigenous cinnamon leaf essential oil and trans-cinnamaldehyde had an excellent inhibitory effect in controlling the red imported fire ant. The LT(50) values for both 2% leaf essential oil and 2% trans-cinnamaldehyde after open exposure were 105.0min and 32.2min; after close exposure were 18.5min and 21.2min, respectively.
Cheng
Sen-Sung
SS
School of Forestry and Resource Conservation, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106, Taiwan.
Liu
Ju-Yun
JY
Lin
Chun-Ya
CY
Hsui
Yen-Ray
YR
Lu
Mei-Chun
MC
Wu
Wen-Jer
WJ
Chang
Shang-Tzen
ST
D000818:Animals; D001000:Ants / Q000502:physiology*; D027424:Cinnamomum / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D007306:Insecticides / Q000008:administration & dosage*; D009822:Oils, Volatile / Q000008:administration & dosage*; D018515:Plant Leaves / Q000737:chemistry*; D016019:Survival Analysis; D015996:Survival Rate
D007306:Insecticides; D009822:Oils, Volatile