Bioactivity of volatile oils from Myoporum bontioides on Plutella xylostella

Abstract

Abstract: This study showed that the volatile oils from Myoporum bontioides had a significant repellent action on Plutella xylostella.When Plutella xylostella adults entered into the 4-arm selective olfactometer,the preferred times and average staying duration,in the order from more to less,were 3,1,4,and 2 arms,which showed a tendency of keeping away from the treatment arms. The males were more sensitive to the volatile oils than the females,when the velocity of flow was 200 ml穖in^-1. On the first day of the 3rd bioassay,the oviposition deterrent rate and IIPC of the volatile oils on Plutella xylostella adults was 94.48% and 0.0552,respectively. A liquid component of the volatile oils from Myoporum bontioides was isolated,purified,and identified as myoporone.

Key words: Myoporum bontioides volatiles, Repellent action, Plutella xylostella (DBM) abstract, 4-arm selective olfactometer

CLC Number:

Q968
S186

HE Yanbiao, HE Tingyu, GU Wenxiang, XIAN Jidong, ZHANG Maoxin, FENG Liping. Bioactivity of volatile oils from Myoporum bontioides on Plutella xylostella[J]. Chinese Journal of Applied Ecology, 2004, (1): 149-152.

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