Toxicity of plant essential oils to Trialeurodes vaporariorum (Homoptera: Aleyrodidae).
A total of 53 plant essential oils were tested for their insecticidal activities against eggs, nymphs, and adults of Trialeurodes vaporariorum Westwood, using an impregnated filter paper bioassays without allowing direct contact. Responses varied according to oil type and dose, and developmental stage of the insect. Bay, caraway seed, clove leaf, lemon eucalyptus, lime dis 5 F, pennyroyal, peppermint, rosewood, spearmint, and tea tree oils were highly effective against T. vaporariorum adults, nymphs, and eggs at 0.0023, 0.0093, and 0.0047 microl/ml air, respectively. These results indicate that the mode of delivery of these essential oils was largely a result of action in the vapor phase. Significant correlations among adulticidal, nymphicidal, and ovicidal activities of the test oils were observed. The essential oils described herein merit further study as potential fumigants for T. vaporariorum control.
Choi
Won-Il
WI
School of Agricultural Biotechnology, Seoul National University, Suwon 441-744, Republic of Korea.
Lee
Eun-Hee
EH
Choi
Byeoung-Ryeol
BR
Park
Hyung-Man
HM
Ahn
Young-Joon
YJ
D000818:Animals; D006430:Hemiptera / Q000254:growth & development; D007306:Insecticides / Q000008:administration & dosage; D009822:Oils, Volatile; D010209:Paper; D010938:Plant Oils
D007306:Insecticides; D009822:Oils, Volatile; D010938:Plant Oils