Persian Journal of Acarology

Sublethal effects of Artemisia annuaL. and Rosmarinus officinalisL. essential oils on life table parameters of Tetranychusurticae(Acari:Tetranychidae)

Authors

Mojtaba Esmaeily
Alireza Bandani
Idin Zibaee
Iman Sharifian
Shahnaz Zare

Department of Plant Protection, Faculty of Agriculture and Natural Resources, University of Tehran, Karaj, Iran;

https://doi.org/10.22073/pja.v6i1.23974
Abstract
The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) is one of the most important agricultural pests of the world. It causes direct and indirect damage on plants which decreases in photosynthesis and crop yield. The effect of sublethal concentrations of Artemisia annua L. (Asteraceae) and Rosmarinus officinalis L. (Lamiaceae) essential oils were assessed on development and reproduction para-meters of two-spotted spider mite T. urticae. Lethal and sublethal concentrations were estimated by fumigant bioassay of essential oils on the adults of T. urticae. The raw life history data of all individuals were analyzed according to the age-stage, two-sex life table theory. LC30 and LC50 of A. annua (2.908 and 4.14 µl/80 ml air) and R. officinalis (1.339 and 2.006 µl/80 ml air) showed that rosemary essential oil has higher fumigant toxicity against T. urticae. Sublethal concentration of the two plant oils led to significant decrease in fecundity, generation time and adult longevity compare to the control. In addition, plant oils decreased the net reproductive rate (R0), intrinsic rate of increase (r), finite rate of increase (λ), and significantly increased doubling time (DT) of T. urticae in compare with control. Obtained results indicated that, sublethal concentra-tions of A. annua and R. officinalis oils could influence on biological indices of T. urticae. 

Keywords

Asteraceae
Lamiaceae
population growth indices
sublethal dose
two-sex life table
two-spotted spider mite
Persian Journal of Acarology
Volume 6, Issue 1
Winter 2017
Pages 39-52

Home

Guide for Authors

Submit Manuscript

Reviewers

Contact Us