<p>The aim of the study was to investigate volatile compounds from the aerial parts of <i>Dianthus acicularis</i> of the genus <i>Dianthus</i> of the family <i>Caryophyllaceae</i> grown wild in Northern Kazakhstan for the first time. <i>D. acicularis</i> is a typical Trans-Volga-Kazakhstani endemic. <i>D. acicularis</i> has high resistance to the bacterial wilt, a serious disease caused by <i>Burkholderia caryophylli</i>. The qualitative and quantitative compositions of the specimens of the essential oils were analysed by the method of GC–MS. The main constituents of <i>D. acicularis</i> essential oil were methyl ketones - 2-pentadecanone (26.9–32.2%) and 2-tridecanone (4.7–17.7%), identified for the first time in the <i>Dianthus</i> genus. The methyl ketone activity provides protection of the plants from herbivores and fungal pathogens. One can suppose that the presence of 2-pentadecanone and 2-tridecanone in the essential oil of carnation coniferous provides its resistance to different insects and pathogens, including the resistance to the bacterial wilt.</p
