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J Agric Food Chem

Title:		Vapor-phase toxicity of Derris scandens Benth.-derived constituents against four stored-product pests
Author(s):		Hymavathi A; Devanand P; Suresh Babu K; Sreelatha T; Pathipati UR; Madhusudana Rao J;
Address:		"Division of Organic Chemistry-I, Natural Product Laboratory, Indian Institute of Chemical Technology (CSIR) , Tarnaka, Hyderabad 500 607, India"
Journal Title:		J Agric Food Chem
Year:		2011
Volume:		20110211
Issue:		5
Page Number:		1653 - 1657
DOI:		10.1021/jf104411h
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"The vapor-phase toxicity of Derris scandens Benth.-derived constituents was evaluated against four stored-product pests ( Callosobruchus chinensis L., Sitophilus oryzae L., Rhyzopertha dominica L., and Tribolium castaneum H.) using fumigation bioassays and compared to those of commonly used insecticides. The structures of all constituents of were characterized by spectroscopic analyses [nuclear magnetic resonance (NMR) and mass spectrometry]. The sensitivity of the test insect to compounds varied with exposure time, concentration, and insect species. Over 100% mortality after 24 h was achieved with the compounds osajin (2), scandinone (5), sphaerobioside (8), and genistein (9) against all of the test insects, while laxifolin (3) and lupalbigenin (4) showed 100% mortality after 72 h against T. csataneum and R. dominica . Scandenone (1), scandenin A (6), and scandenin (7) were less effective. Among the insects, C. chinensis , S. oryzae , and R. dominica were more susceptible to the treatments, whereas T. castaneum was less susceptible. The results of fumigation tests indicated that compounds from D. scandens whole plant extract are potential candidates to control stored-product pests"
Keywords:		Animals Coleoptera Derris/*chemistry Edible Grain *Food Preservation Fumigation Insect Control/*methods *Insecticides *Plant Extracts Tribolium Volatilization;
Notes:		"MedlineHymavathi, Atmakur Devanand, Peta Suresh Babu, Katragadda Sreelatha, Thonthula Pathipati, Usha Rani Madhusudana Rao, Janaswamy eng Research Support, Non-U.S. Gov't 2011/02/15 J Agric Food Chem. 2011 Mar 9; 59(5):1653-7. doi: 10.1021/jf104411h. Epub 2011 Feb 11"