Literature DB >> 14630171

Insecticidal action of the polyphenolic rich fractions from the stem bark of Streblus asper on Dysdercus cingulatus.

M S Hashim1, K S Devi.   

Abstract

Extracts from the stem bark of Streblus asper possess insecticidal activity against the fifth instar of Dysdercus cingulatus. Methanolic extract showed an LC(50) value of 5.56 microg/insect. Partition with chloroform increased the insecticidal activity (LC(50) 2.01 microg/insect). Three polyphenolic rich fractions were obtained from silica-gel column chromatography of the chloroform fraction and found to have noteworthy insecticidal activity (LC(50): 1.82 microg, 2.70 microg, 2.26 microg/insect) by topical application. This may provide a useful beginning for the development of biopesticides.

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Year:  2003        PMID： 14630171     DOI： 10.1016/s0367-326x(03)00186-2

Source DB:  PubMed          Journal:  Fitoterapia        ISSN： 0367-326X            Impact factor:   2.882


  7 in total

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