Abstract
Toxicity and repellency effects of several pure compounds (of plant origin) against the confused flour beetle (Tribolium confusum) were investigated in a filter paper test. The compounds were α-pinen, β-pinen, 4-allyl-anisol, camphor, 1,8-cineol, eugenol, linalool, menthol, piperin, terpineol, thymol and zimtaldehyde. Five compounds (4-allyl-anisol, linalood, terpineol, thymol and zimtaldehyde) caused enough mortality of this insect to allow the determination of LD50 and LD95 values. Zimtaldehyde and 4-allyl-anisol showed the strongest toxicity effects with LD50 values of 0.04–0.05 μl/cm2 within an exposure period of 24 h. When the isolated fumigant effects were tested by separating the insects from the filter paper, the toxicity of zimtaldehyde (LD50=0.29 μl/cm2) was much lower than that of 4-allyl-anisol (LD50=0.10μl/cm2).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.