Evaluation of the Acaricidal Activity of Lithium Chloride against <i>Tetranychus urticae</i> (<i>Acari: Tetranychidae</i>)
2022
Izabella Solti | Éva Kolics | Sándor Keszthelyi | Zsuzsanna Bacsi | Ádám Staszny | Erzsébet Nagy | János Taller | Kinga Mátyás | Balázs Kolics
<i>Tetranychus urticae</i> is a severe threat and a major source of yield loss in some agricultural and horticultural crops and it is also as a vector for several viruses. The number of active substances used against the pest is limited. Therefore, there is a continuous need for new active substances. Recently, lithium salts have been shown to be one of the most promising potential alternatives to control <i>Varroa destructor</i>; an apicultural mite pest. Based on this, we aimed to test whether the efficacy of lithium chloride extends to other agricultural mite pests, such as the two-spotted spider mite. In the present pilot study, we report for the first time that the efficacy of lithium chloride is extended to the two-spotted spider mite. Additionally, this is the first report on the acaricidal effectiveness of lithium on a plant mite pest. In the present study, we report three different concentrations that bear 100% mortality at concentrations of 5.52 M, 2.76 M, and 1.38 M. The symptoms caused were similar and followed the same sequence compared to those observed on animal parasites such as <i>V. destructor</i> and <i>Dermanyssus gallinae</i>.
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