Abstract
The limabean pod borer Etiella zinckenella was deterred from ovipositing on soybean plants treated with the methanolic leaf extract of Populus nigra L. cv Italica. The potent deterrent activity was found in the ethyl acetate-soluble, neutral to weakly-acidic fraction of the leaf extract. Successive fractionation with preparative TLC, open column chromatography and HPLC yielded five active constituents. These were analyzed with 1H-NMR, MS, and IR spectrometries and identified as eugenol, pyrocatechol, salicyl alcohol and methyl esters of cinnamic acid and p-hydroxycinnamic acid. Eugenol was the most active, followed by pyrocatechol.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
