Comparison of anti-feedant and insecticidal activity of nimbin and salannin photo-oxidation products with neem (Azadirachta indica) limonoids

被引：27

作者：

Simmonds, MS

Jarvis, AP

Johnson, S

Jones, GR

Morgan, ED ^{[1
]}

机构：

[1] Univ Keele, Chem Ecol Grp, Lennard Jones Lab, Keele ST5 5BG, Staffs, England

[2] Royal Bot Gardens, Richmond TW9 3AB, Surrey, England

来源：

PEST MANAGEMENT SCIENCE | 2004年 / 60卷 / 05期

关键词：

feeding deterrence; toxicity; natural insecticide; Lepidoptera; locusts;

D O I：

10.1002/ps.834

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Photo-oxidation of the neem limonoids nimbin and salannin with UV light in the presence of oxygen gives two isomeric lactone products per limonoid, nimbinolide and isonimbinolide, and salanninolide and isosalanninolide, respectively. When compared in insect tests with the important limonoids of neem seeds, azadirachtin, nimbin and salannin, isonimbinolide and isosalanninolide show activity greater than that of nimbin or salannin and in some respects show activity approaching that of azadirachtin. The photo-oxidation products were tested for anti-feedant activity and toxicity against larvae of three species of Lepidoptera, Spodoptera littoralis (Boisd), Spodoptera frugiperda (FE Smith) and Helicoverpa armigera (Hubner) and nymphs of the locusts Schistocerca gregaria (Forskal) and Locusta migratoria (L). (C) 2004 Society of Chemical Industry

引用

页码：459 / 464

页数：6

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