Abstract
ABSTARCT Essential oils (EOs) and their components have toxic effects on insects and mites. In the present study, we evaluated the effects of the EOs of mexican oregano, grapefruit, albahaca and sour orange at 0.2% (v/v) on the mortality and population density of Bemisia tabaci and Tetranychus urticae in a greenhouse. All EOs caused significant mortality (70–90%) of eggs and nymphs of B. tabaci, with the highest by the mexican oregano EO. This EO also produced the highest mortality (50–55%) of adults and nymphs of T. urticae. All EOs caused a significant decrease in the population density of T. urticae, but no effect was observed on the population of B. tabaci. Gas chromatography-mass spectrometry analysis showed that the major constituent in mexican oregano EO was carvacrol, in grapefruit and sour orange EOs was d-limonene, and in albahaca EO was eucalyptol.
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.
