A mixture of fatty and essential plant oils to protect plants from flower thrips in greenhouses
- 作者: Tkachenko K.G1, Varfolomeeva E.A1
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隶属关系:
- Great Botanical Garden of the V.L. Komarov Botanical Institute of the Russian Academy of Sciences
- 期: 编号 2 (2025)
- 页面: 26-29
- 栏目: Vegetable growing
- URL: https://journals.rcsi.science/0022-9148/article/view/357452
- DOI: https://doi.org/10.25630/PAV.2025.99.14.001
- ID: 357452
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The last few decades have seen a search for ways to use secondary plant metabolites, the components of which have not only insecticidal but also repellent effects. The present work is devoted to the development of a method for using a mixture of Neem fatty oil obtained from the leaves of Azadirachta indica L. (family Meliaceae) and various essential oils – Litsea cubeba Pers. and Cinnamomum verum J.Presl. (Lauraceae), Cymbopogon flexuosus Stapf. (Poaceae), Juniperus oxycedrus L. (Cupressaceae), Syzygium aromaticum (L.) Merr. & Perry or Eugenia caryophyllata Spreng. (Myrtaceae), Rosmarinus officinalis L. (Lamiaceae), Achillea millefolium L. (Asteraceae), Acorus calamus L. (Acoraceae), for use in the greenhouses of the Peter the Great Botanical Garden BIN RAS against the western flower thrips Frankliniella occidentalis Pergande, 1895 (Thysanoptera, Thripidae). Experimental working solutions of a mixture of neem fatty oil with essential oils were prepared at the rate of 80 ml of oil per 10 l of water. Polysorbate 80 (Tween 80) was used as an emulsifier at the rate of 10-15 ml per 10 l of water. Essential oils were used at a concentration of 5 ml per 10 l of water. Plants were treated with a hand sprayer. Ten flowers for each of three specimens of one plant species were taken for the experiment. The treatments were carried out at an air temperature of 12–16 °C with a humidity of 85%. The consumption of the working fluid was 600 l/ha. As a result of the treatments, it was shown that the duration of the protective effect from the use of a complex of oils ranged from 14 to 21 days. The most effective were mixtures of Neem fatty oil with essential oils of Litsea cubeba, Cinnamomum verum and Cymbopogon flexuosus plants. The decrease in the number of offspring of the western flower thrips averaged from 12 to 25% compared to the control.
作者简介
K. Tkachenko
Great Botanical Garden of the V.L. Komarov Botanical Institute of the Russian Academy of Sciences
E. Varfolomeeva
Great Botanical Garden of the V.L. Komarov Botanical Institute of the Russian Academy of Sciences
参考
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