Chemical components of volatile oil from Mikania micrantha and its biological activity on insects

Abstract

Abstract: The chemical components of volatile oil from Mikania micrantha were analyzed by GC/MS. Twenty-two compounds were identified, and monoterpenes and sesquiterpenes as well as alcohol and ketone with their derivatives were major components. Biological activity of volatile oil on insect was investigated. The results showed that the volatile oil had significant deterrent effect on oviposition of Plutella xylostella, Phyllotreta striolata and Phaedon brassicae at dose of 5～10μl·plant^-1.They also possessed established contacting toxicity, and their rectifying reduce rates for Lipaphis erysimi were 50.0%, 59.86%, 62.51% at concentration of 500, 750, and 1000mg·L^-1,respectively.However, they had not fumigating toxicity for virginogeniae, L. erysimi, 2^nd instar larvae of P. xylostella, and adult of P. striolata at concentration of 500mg·L^-1.

Key words: Mikania micrantha, Volatile oil, Insects, Biological activity, summer maize, density, mixed-cropping, grain yield, ¹³C-photosynthate

CLC Number:

Q949.783.5

ZHANG Maoxin, LING Bing, KONG Chuihua, PANG Xiongfei, LIANG Guangwen . Chemical components of volatile oil from Mikania micrantha and its biological activity on insects[J]. Chinese Journal of Applied Ecology, 2003, (1): 93-96.

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