Antifeedant activity of a novel 6-(4,7-hydroxy-heptyl) quinoneA® from the leaves of the milkweed Pergularia daemia on the cotton bollworm Helicoverpa armigera (Hub.) and the tobacco armyworm Spodoptera litura (Fab.)

被引：11

作者：

Pavunraj, Manickam ^{[2
]}

Muthu, Chellaiah ^{[1
]}

Ignacimuthu, Savarimuthu ^{[1
]}

Janarthanan, Sundaram ^{[2
]}

Duraipandiyan, Veeramuthu ^{[1
]}

Raja, Nagappan ^{[1
]}

Vimalraj, Selvaraj ^{[2
]}

机构：

[1] Loyola Coll, Entomol Res Inst, Madras 600034, Tamil Nadu, India

[2] Univ Madras, Dept Zool, Madras 600025, Tamil Nadu, India

来源：

PHYTOPARASITICA | 2011年 / 39卷 / 02期

关键词：

Botanical pesticides; Medicinal plants; Plant-derived compounds; LEPIDOPTERA; L; BIOEFFICACY; NOCTUIDAE;

D O I：

10.1007/s12600-010-0141-5

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The effects of crude extracts and an isolated compound from the leaves of milkweed, Pergularia daemia (Forssk) Choiv., on the antifeedant activity against two important lepidopteran pests, Helicoverpa armigera (Hub.) and Spodoptera litura (F.), were studied. Maximum antifeedant activity was recorded in ethyl acetate crude extract against H. armigera (70.3%) and S. litura (71.82%) at 1% concentration. Ethyl acetate crude extract was further subjected to column chromatography, which was performed using hexane as initial solvent and then by increasing the polar strength using ethyl acetate. Fractions collected at hexane and ethyl acetate (80:20) yielded 6-(4,7-hydroxy-heptyl) quinone, a novel compound which showed significant antifeedant activity against H. armigera (80.22% at 2000 ppm) and S. litura (68.31% at 2000 ppm).

引用

页码：145 / 150

页数：6