Fumigant activity of essential oils and their components from Eucalyptus codonocarpa and E. dives against Tetranychus urticae (Acari: Tetranychidae) at three temperatures
Article first published online: 29 DEC 2011
© 2011 Blackwell Verlag, GmbH
Journal of Applied Entomology
Volume 136, Issue 9, pages 698–703, November 2012
How to Cite
Lim, E., Lee, B. H. and Park, C. G. (2012), Fumigant activity of essential oils and their components from Eucalyptus codonocarpa and E. dives against Tetranychus urticae (Acari: Tetranychidae) at three temperatures. Journal of Applied Entomology, 136: 698–703. doi: 10.1111/j.1439-0418.2011.01700.x
- Issue published online: 29 OCT 2012
- Article first published online: 29 DEC 2011
- Received: September 26, 2011; accepted: November 25, 2011.
- Tetranychus urticae
Essential oils derived from eighteen species of the Myrtaceae family native to Australia, and major constituents of two oils selected from these oils were tested for their fumigant activity against adult females and eggs of Tetranychus urticae Koch (Acari: Tetranychidae) at 5, 15 and 25°C. Essential oils of Eucalyptus codonocarpa and Eucalyptus dives showed the highest fumigant activity against female adults at 10 μl/l at 15 and 25°C. Among major constituents of the two essential oils, piperitone was the most effective against female adults, followed by terpinene-4-ol at 10 μl/l at all three temperatures. The two essential oils and these two constituents lowered egg hatchability at 10 μl/l at 25°C. Our results suggest that piperitone should be further investigated as a potential fumigant against T. urticae.