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    Pharmacognosy CommunicationsNOW IN
    Article

    Insecticidal activities of fi ve plant derived chemicals on Thrips tabaci Lindeman

    Hakimeh Najmizadeh1,2★, Kamal Ahmadi1, Asieh salari1,2★ Corresponding author

    1. 1Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, IRAN.
    2. 2Member of Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, IRAN.

    CORRESPONDENCE

    Hakimeh Najmizadeh

    Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, IRAN.

    ma.sahar18@gmail.com

    Volume 3, Issue 1 · pp. 12–15 · PUBLISHED · DOI: 10.5530/pc.2013.1.4

    View on Pharmacogn. Commn. original site ↗

    ABSTRACT

    Background:Natural compounds originating from plants might be potential alternative pesticide that are not persistent in the environment and are safe to non-target organisms and for use in sustainable agriculture. Methods:Ethanolic extracts (30 μl/mL) of Melia zedarachL. (Fruits), Peganum harmalaL. (seeds), Calendula offi cinalisL. (seeds), Ferula assafoetidaL. (resin) and Cercis siliquastrumL. (seeds) were applied against 1–2 and 5–6 days of Thrips tabaciLindeman. All the experiments were conducted by spray test bioassay. Ethanol (95%) was used as a control treatment. Results:All the plant derived chemicals were highly toxic against the pre-imago thrips. The mortality percentages of the pest (1–2day old) after 72 hours were more than 66.0% in each of the plant extracts. The highest insecticidal activity against the above-mentioned pre-imago thrips was recorded for the F. assafoetidatreatment (96.7%). Insecticidal activity was more than 85% in the ethanolic extract M. azedarachand P. harmalatreatments. Moreover, the mortality percentage of the thrips (5–6-day old) after 72 hours was more than 80.6% in the ethanolic extract of F. assafoetidatreatment. Conclusions:The plant derived chemicals tested in this study may be useful as a insecticide in T. tabacimanagement programs, although their safety towards humans needs verifi cation.

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      Najmizadeh, H., Ahmadi, K., & salari, A. (). Insecticidal activities of fi ve plant derived chemicals on Thrips tabaci Lindeman. Pharmacognosy Communications, 3(1), 12–15. https://doi.org/10.5530/pc.2013.1.4