Premium
Extracts from Tephrosia vogelii for the protection of stored legume seeds against damage by three bruchid species
Author(s) -
Koona P.,
Dorn S.
Publication year - 2005
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.2005.00006.x
Subject(s) - biology , callosobruchus maculatus , legume , callosobruchus chinensis , acetone , botany , context (archaeology) , horticulture , pest analysis , biochemistry , paleontology
Aliquots of powdered dried leaves of Tephrosia vogelii (Leguminosae – Papilionoideae) were extracted with hexane, acetone and ethanol. The extracts were tested for their potential to protect stored legume seeds from damage by the bruchids Acanthoscelides obtectus , Callosobruchus maculatus and Callosobruchus chinensis (Coleoptera – Bruchidae). While the acetone and ethanol extracts were ineffective except for a significant but low effect on A. obtectus , the hexane extract had a relatively high efficacy, providing similar control of all three bruchid species. This effect was manifested in slowly‐reduced adult survival within 7 days and in reduced numbers of eggs laid and of F 1 progeny produced, resulting in seed damage averaging 7.1% compared to 99.8% in the untreated controls after one generation. These findings are discussed in the context of previously identified constituents of T. vogelii , the rotenoids rotenone, tephrosin and deguelin.